TZ iBoat – Marine Navigation

Name: TZ iBoat – Marine Navigation
Rating: 4.7 (857 reviews)
Author: Nobeltec, Inc.

by Nobeltec, Inc.

iPhone · iPad

Active Last checked 31 Jul 2026

App Store ↗

Quick verdict

What it is: Store information collected; independent summary not yet available.
At a glance: Free to download
In-app purchases

Categories and search queries

Official categories

Navigation
Weather

AppCorpus categories

Key functions

Function	Availability	Access	Scope	Evidence
Free app	Yes	Free	—	Store published
In-app purchases	Yes	Limited free	—	Store published

Screens

No screenshots collected yet.

Pricing & paywalls

App Store

Free to download
In-app purchases

Last verified 31 Jul 2026

Ratings & reviews

App Store

4.7 857 ratings · App Store

5/5Best navigation app
I’ve been using the computer version of TimeZero and older versions of Nobeltec for a very long time, and this has almost all the features of the computer version. It seems like they replaced the track line recording feature with the ability to share with your followers, which is kind of annoying, but not too big of a issue. For $20 a year it is not the professional navigation program that the $3000 one for PC is, but it is much better than the other app I had. They also seem to make improvements based on feedback, so I hope they bring back the old way of recording track lines. One other thing, and this is not that much of an issue for average use and is probably less of a problem with the app than the actual GPS in my phone, is that if you’re going slow, as you do while setting a longline, it sometimes doesn’t show the boat icon facing the right way. Again, not too much of a problem for average use, but one of the times it happened I was setting a longline and I thought the boat was pointing towards a 25 fathom sounding on the chart, but the icon was pointing the wrong way and it ended up being 49 fathoms. The other small things that could be improved is it would be nice if you could see the SOG without having the whole sidebar open. Overall, while it has a few small issues, it is great for navigating skiffs and much better than the competition.

Piggings · 31 Jul 2026
5/5Ease of use
TZ iBoat is one of the easiest and most complete aids to navigation on the market. The seamless charting works flawlessly, the detailed tides and currents right on the chart make it easy for anyone looking on. There is no time needed for flipping between programs which enables you to keep your eyes out on the water and not always buried in the screen. The distance and bearing feature is so easy ito use that identifying navigation aids and points of land with a hand bearing compass is fast and accurate. iBoat is clearly a fantastic navigation aid that when used with other aids such as hand bearing compasses, depth sounders, binoculars, etc, will help to make your trip as safe as possible. This aid to navigation does so much more including being able to add and remove features from your screen easily in order to keep your screen uncluttered works extremely well. I would rate this Nobeltec product higher than anything else seen on the market today. Look it up and I challenge you to find a more complete easy to use program. Captain Thomson.

Sailor 1 · 31 Jul 2026
3/5This is a great app, but…
I’ve been using this for a few years professionally for deliveries and charters throughout the Caribbean. I’ve always been very happy with its functions and quality of charts, integration of weather and what I think is the best anchor watch available period. My only complaint until now has been that the satellite overlays are very very out of date, 7-8 years in some cases. However the new version is clunky and very frustrating. Weather used to be a simple layer you can turn on or off, but now is a separate tab, which doesn’t open on the same location as where i might have been on the Navigation tab, so then i have to move the chart again to were i want to see the weather. The Anchor tab seemed un-needed as it was just a button, so why make a tab that has to be set up with the layers you want visible. The logbook was always available in Smart Search so also seems like an extra layer of UI for no reason. My biggest complaint is that I can no longer use Smart Search to find and activate a route. When choosing a route from Smart Search the chart zooms out, but the activate icon is greyed out, and it doesn’t show the route unless I click on the start waypoint, but I have hundreds of routes and many share start waypoints, so then i have to change the settings to show arrival waypoints, find the arrival waypoint on the chart, and then i can click activate. What used to take 5 seconds now takes 5 minutes. I love many things about this software and the PC based TimeZero, but am not happy with how clunky version 4 is

Captain TJD · 31 Jul 2026
5/5Very Impressed
I have tried all of the sailing apps out there and it’s hard to find one that’s a good balance of functionality and price. I am a long time user of a different popular app, but decided to give this one a try and have been surprised by how much I like it. There are a few features that I wish it had (a better management system for saved tracks) and the companion laptop software is absurdly priced, but the app is worth trying and spending the money for maps. I still haven’t managed to get it connected to Furuno network on the boat I sail on (better instructions on making the network connection work would be nice), but the maps are very nice to view and all the interactions are intuitive and easy.

EchoWhiskey · 31 Jul 2026
2/5Not Worth The Money
I bought this app thinking it would be a good tool to easily plan future routes and transfer them to my existing Furuno Black Box system. This app does not allow you to easily transfer points or routes to your Furuno plotters. You can pull up a tide or current prediction for a particular point within the app but there is no capability to get this data for a future date which renders this feature useless from a planning standpoint. The graphics are good, especially the transition between 2D and 3D and it’s helpful to visualize an entrance into a harbor you have never been to before. There is zero capability to use the data from this app on a Mac and the CloudZero feature is worthless because it only contains base data from a Raster chart. Would I use this instead of Navionics on my IPad and Mac? No. It’s not worth the money. It needs a huge amount of data input just to get up to speed with Navionics. Note: I have no financial ties to either Garmin or TZiboat and nothing to gain by the success/failure of either company.

Fleming 55 · 31 Jul 2026

Privacy & accessibility

App Store

Privacy

Data Linked to You — Analytics — Contact Info — Email Address Developer declared
Data Linked to You — App Functionality — Contact Info — Name Developer declared
Data Linked to You — Developer’s Advertising or Marketing — Contact Info — Email Address Developer declared
Data Linked to You — Developer’s Advertising or Marketing — Contact Info — Name Developer declared
Data Linked to You — Contact Info Developer declared

Accessibility

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Versions

App Store

3.1.1
3 major new features in this version! - Route Assist: The first improvement is one of our most requested features: the Route creation assistant allows you to create a complex route in just a few clicks while retaining control of the process. As you add waypoints, the assistant recalculates your route, avoiding land and shallow areas - all in the blink of an eye! - Rain Radar: The Premium Weather subscription now includes Rain Radar. This feature displays the evolution of precipitation in real time, and with a 3-hour history. Now, you can more easily anticipate showers! - Marine Forecasts (USA): We have added Marine Forecasts to the Premium Weather for users of the application in the United States. These are text bulletins issued by the American Meteorological Service (NOAA); they are a very reliable complement to traditional weather forecasts. With one click, the text bulletin for the desired area appears! Fair winds to all!
3.1.2
• Route Assist edition was improved, it is now possible to finely tune route assist result. • Now Route assist have a better respect of the requested Safety Depth. In previous version, Route Assist could sometimes decide to take a shortcut in a shallow area to avoid a big detour. • Now it is possible to start a route from an intertidal area or from the land, which is useful when working with a large scale. • Plus, several bug fixes We also fixed some bugs found in Tide database.
3.1.3
Bug Fix: Resolved issues with sending tickets, including Contact Support, Request a Feature, and Chart Feedback. All functionalities are now fully operational.
3.1.4
Various bug fixes.
3.1.5
- Enhanced Troubleshooting Information: Provides better details to assist the support team in resolving issues with TZ iBoat. - Improved TZ Maps Update Process: - Added a progress bar and a new cancel button. - Optimized download times for faster updates. - Streamlined First Launch Experience: Reduced the number of system pop-ups for a smoother onboarding. - Upgraded Chart Zone Alarms: - You can now set each alarm to trigger either as a "notification" or a full "alarm" (previously limited to on/off). - Added new chart zone types: prohibited and restricted anchorage areas, prohibited and restricted fishing zones, restricted speed and no-wake zones. - Fixed a bug with "named area" alarms that were sometimes triggered inappropriately.
3.1.6
We’ve fixed an issue that occurred when transferring data to a new iOS device using Apple’s automatic transfer tool, causing purchased charts to become inaccessible. Charts now transfer seamlessly without requiring a reinstall of TZ iBoat.
3.1.7
- Fixed an issue specific to iPad 7th generation causing slowdowns and instability. - Various bug fixes and performance improvements.
3.2.0
• AIS Online with TZ Cloud: The new "TZ Online AIS" feature allows you to access AIS targets beyond your local receiver’s range by connecting to our global AIS network via the Internet. When enabled, any AIS targets within your local receiver’s range will automatically be shared with the community. Note: This feature requires the AIS module, which must be purchased to enable AIS Online. • PredictWind AIS Compatibility: Improved AIS data handling now supports PredictWind's DATAHUB service. • AIS Improvement: Avoid duplicate targets by adding your MMSI in the settings, which hides your vessel's own AIS target. • Enhanced Radar Overlay: A refined computed heading algorithm improves radar overlay performance without an electronic compass. Adjust the threshold for better performance and get clearer indications when heading data is unreliable. • Improved Troubleshooting Tool: The Contact support form now provides more detailed information, enabling faster and better assistance.
3.2.1
• AIS Online with TZ Cloud: The new "TZ Online AIS" feature allows you to access AIS targets beyond your local receiver’s range by connecting to our global AIS network via the Internet. When enabled, any AIS targets within your local receiver’s range will automatically be shared with the community. Note: This feature requires the AIS module, which must be purchased to enable AIS Online. • PredictWind AIS Compatibility: Improved AIS data handling now supports PredictWind's DATAHUB service. • AIS Improvement: Avoid duplicate targets by adding your MMSI in the settings, which hides your vessel's own AIS target. • Enhanced Radar Overlay: A refined computed heading algorithm improves radar overlay performance without an electronic compass. Adjust the threshold for better performance and get clearer indications when heading data is unreliable. • Improved Troubleshooting Tool: The Contact support form now provides more detailed information, enabling faster and better assistance.
3.2.2
New Features & Improvements • BathyVision: Added an option to disable bold "Master" contour lines for improved clarity. • Trips Preview: When selecting a trip, only that trip is now displayed to enhance focus. • Offline Screens: The ownship is now visible on the chart caching screen for better location awareness. • New Chart Area: Added coverage for South Africa & Namibia. Bug Fixes • Fixed an issue related to user logout.
3.3.0
New: SportFishing data is now available on TZ iBoat! The SportFishing Ocean-O service includes Premium Weather. Fishing enthusiasts, this update is for you! With SportFishing Ocean-O, quickly find the best fishing spots by customizing your layers using: • Sea Surface Temperature (SST) • Sea Surface Height (SSH) • Chlorophyll concentration • Ocean currents • HD Weather (wind, waves, pressure…) Choose how you display your layers (color maps, contour lines, arrows, particles) and combine them to pinpoint your hotspots. Available as a monthly subscription, easy to activate directly in the app! Explore the map at your own pace: data loads automatically, no need to download in advance. At sea? Simply pre-cache your areas for offline use.
3.3.1
New: SportFishing data is now available on TZ iBoat! The SportFishing Ocean-O service includes Premium Weather. Fishing enthusiasts, this update is for you! With SportFishing Ocean-O, quickly find the best fishing spots by customizing your layers using: • Sea Surface Temperature (SST) • Sea Surface Height (SSH) • Chlorophyll concentration • Ocean currents • HD Weather (wind, waves, pressure…) Choose how you display your layers (color maps, contour lines, arrows, particles) and combine them to pinpoint your hotspots. Available as a monthly subscription, easy to activate directly in the app! Explore the map at your own pace: data loads automatically, no need to download in advance. At sea? Simply pre-cache your areas for offline use.
3.3.2
- Fixed: Unable to move "Go To" waypoint - Fixed: Duplicate lat/lon in mark tooltip - Fixed: MM4 soundings – incorrect depth display over land and wrong value in tooltip - Fixed: Ownship icon not showing in update screen - Fixed: Crash caused by chart object properties in certain extra data (e.g. France south east area) - Onboarding: Added new slide for promoting Sportfishing Ocean-O subscription - Tentative fix: Occasional loss of user settings
3.3.3
- Updated app icon - Improved internal GPS accuracy and diagnostic - New option to disable « photofusion » in plotter settings : allows satellite photo to be displayed over chart without transparency even when water is deep - Bug fixes: data export, METAR display, crash handling
3.3.4
Various bug fixes.
3.3.5
Discover the Boat Profile in TZ iBoat. Set up your boat, its main characteristics, and your activities in just a few steps. Your profile is synced with your My TIMEZERO account and helps prepare TZ iBoat for a more tailored experience in the future.
3.3.6
Discover the Boat Profile in TZ iBoat. Set up your boat, its main characteristics, and your activities in just a few steps. Your profile is synced with your My TIMEZERO account and helps prepare TZ iBoat for a more tailored experience in the future. Various bug fixes.
4.0.0
This new version introduces a completely redesigned interface with faster, more intuitive access to essential functions. • New design with dedicated screens: Navigation, Logbook, Instruments, Weather, Anchoring, Tides, Sonar, Ocean-O. Navigate quickly thanks to the new TZ Bar. • New Rain Radar with expanded offshore coverage and real-time lightning strike display. • NMEA connections have been improved and instrument setup has been simplified. • New Latitude / Longitude keyboard. • Simplified access to file import through a new dedicated entry point. • Numerous improvements in interface, performance, and accessibility.
4.0.1
This new version introduces a completely redesigned interface with faster, more intuitive access to essential functions. • New design with dedicated screens: Navigation, Logbook, Instruments, Weather, Anchoring, Tides, Sonar, Ocean-O. Navigate quickly thanks to the new TZ Bar. • New Rain Radar with expanded offshore coverage and real-time lightning strike display. • NMEA connections have been improved and instrument setup has been simplified. • New Latitude / Longitude keyboard. • Simplified access to file import through a new dedicated entry point. • Numerous improvements in interface, performance, and accessibility.
4.0.2
Following the release of Version 4, many of you contacted us to report bugs. Thank you very much for your help. Your feedback has been invaluable and has enabled our developers to work hard to resolve as many issues as possible. Thank you as well for your patience. The following issues have been fixed in this update: • Stability issue affecting 7th-generation iPads. The root cause was identified and fixed. • Migration issue from Version 3 to Version 4 that could result in the loss of instrument connection settings. • Some users lost access to their charts after updating. • Users with a Premium Weather or Sport Fishing subscription did not automatically regain access to the Essential service. • The "Cruise Speed" option (formerly "Planning Route Speed") in the "Profile" menu was not available without an internet connection. • Occasional crash when tapping the notification bar. • Crash or inability to validate a "Catch". • Inconsistent date display in the Navigation screen: tides and tidal currents did not always show data corresponding to the current time. • Infinite zoom issue when using pinch-to-zoom gestures. • Occasional crash when opening the LOG page. A known stability issue affecting 5th-generation iPads remains under investigation. Our team is actively working to identify and resolve the problem. Your feedback is essential in helping us improve the application. If you encounter a bug or have an idea for an improvement, please do not hesitate to contact our support team.
4.0.3
Version 4.0.3 includes the following fixes: • Improved stability on 5th-generation iPads • Fixed crashes occurring when displaying the AIS online layer (TZ Online AIS) • Fixed an issue where the chart layer was automatically set to "Off" at startup for some users, resulting in a blank chart display Thank you for your patience and valuable feedback.
4.0.4
- Fixed a major stability issue affecting the AIS layer, particularly in areas with high AIS traffic. TZ Online AIS now operates reliably. - Fixed an issue where the Instrument NMEA configuration was lost every time the app restarted, requiring users to reconfigure it on each launch. - Fixed an issue affecting Elite users where some oceanographic values in the contextual menu were displayed incorrectly, particularly Chlorophyll, which always showed 0. - Fixed a random stability issue that could occur when creating routes or lines from latitude/longitude coordinates using the keyboard. - Fixed an issue where the Position Report dialog did not always appear when starting a live trip. As a result, followers might not receive the trip start notification or be able to follow the trip. - Restored the Chart Feedback feature, which had been removed by mistake. This feature allows users to report chart areas that require improvement directly to our chart team.
4.0.5
Version 4.0.5 improvements: • Optimized the Boat Profile screen for phones.
4.0.6
Version 4.0.6 improvements: • Fixed an issue where users were repeatedly asked to complete their **Boat Profile** at startup, even when it was already completed. • Improved application stability.
4.0.7 · 27 Jul 2026
Version 4.0.7 improvements: • Improved Tides and Currents data. • Improved handling of network errors with Starlink: fixed an issue that could cause unexpected disconnections or weather service failures when the Internet connection returned access errors (HTTP 403). The application now correctly distinguishes connectivity issues from service errors for a more reliable experience. • Improved application stability.

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Alternatives

i-Boating: Marine Charts & Gps — Same category + similar ratings
PRO CHARTS - Marine Navigation — Same category + similar ratings

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Last verified: 31 Jul 2026
Sources: App Store

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"rating": 5,
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"body": "I’ve been using the computer version of TimeZero and older versions of Nobeltec for a very long time, and this has almost all the features of the computer version. It seems like they replaced the track line recording feature with the ability to share with your followers, which is kind of annoying, but not too big of a issue. For $20 a year it is not the professional navigation program that the $3000 one for PC is, but it is much better than the other app I had. They also seem to make improvements based on feedback, so I hope they bring back the old way of recording track lines. One other thing, and this is not that much of an issue for average use and is probably less of a problem with the app than the actual GPS in my phone, is that if you’re going slow, as you do while setting a longline, it sometimes doesn’t show the boat icon facing the right way. Again, not too much of a problem for average use, but one of the times it happened I was setting a longline and I thought the boat was pointing towards a 25 fathom sounding on the chart, but the icon was pointing the wrong way and it ended up being 49 fathoms. The other small things that could be improved is it would be nice if you could see the SOG without having the whole sidebar open. Overall, while it has a few small issues, it is great for navigating skiffs and much better than the competition.",
"author": "Piggings",
"date": "31 Jul 2026"
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"title": "Ease of use",
"body": "TZ iBoat is one of the easiest and most complete aids to navigation on the market. The seamless charting works flawlessly, the detailed tides and currents right on the chart make it easy for anyone looking on. There is no time needed for flipping between programs which enables you to keep your eyes out on the water and not always buried in the screen. The distance and bearing feature is so easy ito use that identifying navigation aids and points of land with a hand bearing compass is fast and accurate. iBoat is clearly a fantastic navigation aid that when used with other aids such as hand bearing compasses, depth sounders, binoculars, etc, will help to make your trip as safe as possible. This aid to navigation does so much more including being able to add and remove features from your screen easily in order to keep your screen uncluttered works extremely well. I would rate this Nobeltec product higher than anything else seen on the market today. Look it up and I challenge you to find a more complete easy to use program. Captain Thomson.",
"author": "Sailor 1",
"date": "31 Jul 2026"
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"body": "I’ve been using this for a few years professionally for deliveries and charters throughout the Caribbean. I’ve always been very happy with its functions and quality of charts, integration of weather and what I think is the best anchor watch available period. My only complaint until now has been that the satellite overlays are very very out of date, 7-8 years in some cases. However the new version is clunky and very frustrating. Weather used to be a simple layer you can turn on or off, but now is a separate tab, which doesn’t open on the same location as where i might have been on the Navigation tab, so then i have to move the chart again to were i want to see the weather. The Anchor tab seemed un-needed as it was just a button, so why make a tab that has to be set up with the layers you want visible. The logbook was always available in Smart Search so also seems like an extra layer of UI for no reason. My biggest complaint is that I can no longer use Smart Search to find and activate a route. When choosing a route from Smart Search the chart zooms out, but the activate icon is greyed out, and it doesn’t show the route unless I click on the start waypoint, but I have hundreds of routes and many share start waypoints, so then i have to change the settings to show arrival waypoints, find the arrival waypoint on the chart, and then i can click activate. What used to take 5 seconds now takes 5 minutes. I love many things about this software and the PC based TimeZero, but am not happy with how clunky version 4 is",
"author": "Captain TJD",
"date": "31 Jul 2026"
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"body": "I have tried all of the sailing apps out there and it’s hard to find one that’s a good balance of functionality and price. I am a long time user of a different popular app, but decided to give this one a try and have been surprised by how much I like it. There are a few features that I wish it had (a better management system for saved tracks) and the companion laptop software is absurdly priced, but the app is worth trying and spending the money for maps. I still haven’t managed to get it connected to Furuno network on the boat I sail on (better instructions on making the network connection work would be nice), but the maps are very nice to view and all the interactions are intuitive and easy.",
"author": "EchoWhiskey",
"date": "31 Jul 2026"
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"body": "I bought this app thinking it would be a good tool to easily plan future routes and transfer them to my existing Furuno Black Box system. This app does not allow you to easily transfer points or routes to your Furuno plotters. You can pull up a tide or current prediction for a particular point within the app but there is no capability to get this data for a future date which renders this feature useless from a planning standpoint. The graphics are good, especially the transition between 2D and 3D and it’s helpful to visualize an entrance into a harbor you have never been to before. There is zero capability to use the data from this app on a Mac and the CloudZero feature is worthless because it only contains base data from a Raster chart. Would I use this instead of Navionics on my IPad and Mac? No. It’s not worth the money. It needs a huge amount of data input just to get up to speed with Navionics. Note: I have no financial ties to either Garmin or TZiboat and nothing to gain by the success/failure of either company.",
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"version": "3.1.5",
"released_at": null,
"notes": "- Enhanced Troubleshooting Information: Provides better details to assist the support team in resolving issues with TZ iBoat. - Improved TZ Maps Update Process: - Added a progress bar and a new cancel button. - Optimized download times for faster updates. - Streamlined First Launch Experience: Reduced the number of system pop-ups for a smoother onboarding. - Upgraded Chart Zone Alarms: - You can now set each alarm to trigger either as a \"notification\" or a full \"alarm\" (previously limited to on/off). - Added new chart zone types: prohibited and restricted anchorage areas, prohibited and restricted fishing zones, restricted speed and no-wake zones. - Fixed a bug with \"named area\" alarms that were sometimes triggered inappropriately."
},
{
"store": "apple",
"version": "3.1.6",
"released_at": null,
"notes": "We’ve fixed an issue that occurred when transferring data to a new iOS device using Apple’s automatic transfer tool, causing purchased charts to become inaccessible. Charts now transfer seamlessly without requiring a reinstall of TZ iBoat."
},
{
"store": "apple",
"version": "3.1.7",
"released_at": null,
"notes": "- Fixed an issue specific to iPad 7th generation causing slowdowns and instability. - Various bug fixes and performance improvements."
},
{
"store": "apple",
"version": "3.2.0",
"released_at": null,
"notes": "• AIS Online with TZ Cloud: The new \"TZ Online AIS\" feature allows you to access AIS targets beyond your local receiver’s range by connecting to our global AIS network via the Internet. When enabled, any AIS targets within your local receiver’s range will automatically be shared with the community. Note: This feature requires the AIS module, which must be purchased to enable AIS Online. • PredictWind AIS Compatibility: Improved AIS data handling now supports PredictWind's DATAHUB service. • AIS Improvement: Avoid duplicate targets by adding your MMSI in the settings, which hides your vessel's own AIS target. • Enhanced Radar Overlay: A refined computed heading algorithm improves radar overlay performance without an electronic compass. Adjust the threshold for better performance and get clearer indications when heading data is unreliable. • Improved Troubleshooting Tool: The Contact support form now provides more detailed information, enabling faster and better assistance."
},
{
"store": "apple",
"version": "3.2.1",
"released_at": null,
"notes": "• AIS Online with TZ Cloud: The new \"TZ Online AIS\" feature allows you to access AIS targets beyond your local receiver’s range by connecting to our global AIS network via the Internet. When enabled, any AIS targets within your local receiver’s range will automatically be shared with the community. Note: This feature requires the AIS module, which must be purchased to enable AIS Online. • PredictWind AIS Compatibility: Improved AIS data handling now supports PredictWind's DATAHUB service. • AIS Improvement: Avoid duplicate targets by adding your MMSI in the settings, which hides your vessel's own AIS target. • Enhanced Radar Overlay: A refined computed heading algorithm improves radar overlay performance without an electronic compass. Adjust the threshold for better performance and get clearer indications when heading data is unreliable. • Improved Troubleshooting Tool: The Contact support form now provides more detailed information, enabling faster and better assistance."
},
{
"store": "apple",
"version": "3.2.2",
"released_at": null,
"notes": "New Features & Improvements • BathyVision: Added an option to disable bold \"Master\" contour lines for improved clarity. • Trips Preview: When selecting a trip, only that trip is now displayed to enhance focus. • Offline Screens: The ownship is now visible on the chart caching screen for better location awareness. • New Chart Area: Added coverage for South Africa & Namibia. Bug Fixes • Fixed an issue related to user logout."
},
{
"store": "apple",
"version": "3.3.0",
"released_at": null,
"notes": "New: SportFishing data is now available on TZ iBoat! The SportFishing Ocean-O service includes Premium Weather. Fishing enthusiasts, this update is for you! With SportFishing Ocean-O, quickly find the best fishing spots by customizing your layers using: • Sea Surface Temperature (SST) • Sea Surface Height (SSH) • Chlorophyll concentration • Ocean currents • HD Weather (wind, waves, pressure…) Choose how you display your layers (color maps, contour lines, arrows, particles) and combine them to pinpoint your hotspots. Available as a monthly subscription, easy to activate directly in the app! Explore the map at your own pace: data loads automatically, no need to download in advance. At sea? Simply pre-cache your areas for offline use."
},
{
"store": "apple",
"version": "3.3.1",
"released_at": null,
"notes": "New: SportFishing data is now available on TZ iBoat! The SportFishing Ocean-O service includes Premium Weather. Fishing enthusiasts, this update is for you! With SportFishing Ocean-O, quickly find the best fishing spots by customizing your layers using: • Sea Surface Temperature (SST) • Sea Surface Height (SSH) • Chlorophyll concentration • Ocean currents • HD Weather (wind, waves, pressure…) Choose how you display your layers (color maps, contour lines, arrows, particles) and combine them to pinpoint your hotspots. Available as a monthly subscription, easy to activate directly in the app! Explore the map at your own pace: data loads automatically, no need to download in advance. At sea? Simply pre-cache your areas for offline use."
},
{
"store": "apple",
"version": "3.3.2",
"released_at": null,
"notes": "- Fixed: Unable to move \"Go To\" waypoint - Fixed: Duplicate lat/lon in mark tooltip - Fixed: MM4 soundings – incorrect depth display over land and wrong value in tooltip - Fixed: Ownship icon not showing in update screen - Fixed: Crash caused by chart object properties in certain extra data (e.g. France south east area) - Onboarding: Added new slide for promoting Sportfishing Ocean-O subscription - Tentative fix: Occasional loss of user settings"
},
{
"store": "apple",
"version": "3.3.3",
"released_at": null,
"notes": "- Updated app icon - Improved internal GPS accuracy and diagnostic - New option to disable « photofusion » in plotter settings : allows satellite photo to be displayed over chart without transparency even when water is deep - Bug fixes: data export, METAR display, crash handling"
},
{
"store": "apple",
"version": "3.3.4",
"released_at": null,
"notes": "Various bug fixes."
},
{
"store": "apple",
"version": "3.3.5",
"released_at": null,
"notes": "Discover the Boat Profile in TZ iBoat. Set up your boat, its main characteristics, and your activities in just a few steps. Your profile is synced with your My TIMEZERO account and helps prepare TZ iBoat for a more tailored experience in the future."
},
{
"store": "apple",
"version": "3.3.6",
"released_at": null,
"notes": "Discover the Boat Profile in TZ iBoat. Set up your boat, its main characteristics, and your activities in just a few steps. Your profile is synced with your My TIMEZERO account and helps prepare TZ iBoat for a more tailored experience in the future. Various bug fixes."
},
{
"store": "apple",
"version": "4.0.0",
"released_at": null,
"notes": "This new version introduces a completely redesigned interface with faster, more intuitive access to essential functions. • New design with dedicated screens: Navigation, Logbook, Instruments, Weather, Anchoring, Tides, Sonar, Ocean-O. Navigate quickly thanks to the new TZ Bar. • New Rain Radar with expanded offshore coverage and real-time lightning strike display. • NMEA connections have been improved and instrument setup has been simplified. • New Latitude / Longitude keyboard. • Simplified access to file import through a new dedicated entry point. • Numerous improvements in interface, performance, and accessibility."
},
{
"store": "apple",
"version": "4.0.1",
"released_at": null,
"notes": "This new version introduces a completely redesigned interface with faster, more intuitive access to essential functions. • New design with dedicated screens: Navigation, Logbook, Instruments, Weather, Anchoring, Tides, Sonar, Ocean-O. Navigate quickly thanks to the new TZ Bar. • New Rain Radar with expanded offshore coverage and real-time lightning strike display. • NMEA connections have been improved and instrument setup has been simplified. • New Latitude / Longitude keyboard. • Simplified access to file import through a new dedicated entry point. • Numerous improvements in interface, performance, and accessibility."
},
{
"store": "apple",
"version": "4.0.2",
"released_at": null,
"notes": "Following the release of Version 4, many of you contacted us to report bugs. Thank you very much for your help. Your feedback has been invaluable and has enabled our developers to work hard to resolve as many issues as possible. Thank you as well for your patience. The following issues have been fixed in this update: • Stability issue affecting 7th-generation iPads. The root cause was identified and fixed. • Migration issue from Version 3 to Version 4 that could result in the loss of instrument connection settings. • Some users lost access to their charts after updating. • Users with a Premium Weather or Sport Fishing subscription did not automatically regain access to the Essential service. • The \"Cruise Speed\" option (formerly \"Planning Route Speed\") in the \"Profile\" menu was not available without an internet connection. • Occasional crash when tapping the notification bar. • Crash or inability to validate a \"Catch\". • Inconsistent date display in the Navigation screen: tides and tidal currents did not always show data corresponding to the current time. • Infinite zoom issue when using pinch-to-zoom gestures. • Occasional crash when opening the LOG page. A known stability issue affecting 5th-generation iPads remains under investigation. Our team is actively working to identify and resolve the problem. Your feedback is essential in helping us improve the application. If you encounter a bug or have an idea for an improvement, please do not hesitate to contact our support team."
}
],
"alternatives": [
{
"app_id": 994992062,
"name": "i-Boating: Marine Charts & Gps",
"url": "https://appcorpus.com/apps/i-boating-marine-charts-gps-994992062",
"reason": "Same category + similar ratings"
},
{
"app_id": 451093694,
"name": "PRO CHARTS - Marine Navigation",
"url": "https://appcorpus.com/apps/pro-charts-marine-navigation-451093694",
"reason": "Same category + similar ratings"
}
],
"evidence_summary": {
"index_state": "S1",
"evidence_level": 1,
"level_label": "Live store listing",
"indexable": true,
"last_verified_at": "2026-07-31",
"unknown_fields": [
"Independent summary has not been published yet.",
"Screenshots: not yet collected"
],
"sources": [
"App Store"
]
},
"availability_markets": {
"live": [
"us"
],
"selected": "us",
"note": null
},
"feature_events": {
"events": []
},
"features_slice": {
"plans": [],
"features": [],
"unknown_features": [],
"data_cutoff": "31 Jul 2026"
}
}