Quick verdict
- What it is
- Store information collected; independent summary not yet available.
- At a glance
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- $9.99
- In-app purchases
Categories and search queries
Official categories
- Photo & Video
- Utilities
AppCorpus categories
Key functions
| Function | Availability | Access | Scope | Evidence |
|---|---|---|---|---|
| In-app purchases | Yes | Limited free | — | Store published |
Screens
No screenshots collected yet.
Pricing & paywalls
App Store
Shown for US
- Price: $9.99
- In-app purchases
Ratings & reviews
App Store
Shown for US
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4/5Sure, it’s worth it :)
I have to apologize to the developer. I purchased this app and I was at first a bit miffed at what I thought I’d gotten for the price. I actually went so far as to ask Apple for a refund, which I pretty quickly regretted. As I used the app I realized that it was my preferred one as far as phone light meters go, and the log feature is very cool. I’ve been testing it against my camera’s meter and feel confident that it will work well with an old rangefinder I’m using that doesn’t have a meter. One less thing to carry around with me when shooting, because my phone would be in my pocket anyway. It works well, is well designed and thought out, and the log feature is great. So I went back and bought it again! Thanks for making it and sorry for my initial snap judgment!
cranky325 · 31 Jul 2026
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4/5Needs a bug update.
It’s a great, simple to use app and I’ve been using it for years. However, there’s a bug which causes the app to freeze and not respond to light changes (what is worse is that it is not obvious as the app seems to work normal, so it can lead to completely wrong readings). I hope it gets updated soon. It tends to happen when the front facing camera is used (not sure if also present when main camera is used).
SynthUser123 · 31 Jul 2026
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5/5Counting photons
Not quite yet. On the good side - measures exposure correctly (like a real light meter) so one can use it for the zone system. Spot metering by taping on the screen helps a lot. Settings are practical. On the other side - just getting rid of the adds (for $1.99) doesn't last if application is reinstalled. Probably one needs to buy the author a beer (for $5.99) to get rid if the adds permanently.. The worst part is once you get rid of the adds, the field where the adds were is like a blind spot - you cannot place the cursor there for spot metering. I think the only serious restriction of this application. Overall, great App - five stars.
Always sunny in my mind · 31 Jul 2026
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5/5Great App, feels a little outdated
App is accurate. Ive used this for both a Mamiya 645 and RZ67. Works fantastic every time. My film comes out well exposed. I don’t even carry a light meter because I trust this app so much. My only complaint is that the app’s layout and overall look feels a little outdated. It looks like an app that you’d get back in the early smartphone days. It’s not that big of a deal though because it works great regardless, but an appearance update wouldn’t hurt it.
Katie.kat16 · 31 Jul 2026
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4/5The Best…..so far
This is really the best iPhone Exp Meter available. The only thing holding back the 5 star rating is the cheesy font and background in the logged photos. Needs modernization and a few graphic interface improvements. Adding the ability to assign Hold and Log buttons using the iPhone up and down volume buttons would make this a killer app. Please keep developing this app and hopefully add the button feature.
CANDELAPRODS · 31 Jul 2026
Privacy & accessibility
App Store
Privacy
- Data Not Linked to You — App Functionality — Diagnostics — Crash Data Developer declared
- Data Not Linked to You — App Functionality — Location — Precise Location Developer declared
- Data Not Linked to You — App Functionality — User Content — Photos or Videos Developer declared
- Data Not Linked to You — Diagnostics Developer declared
- Data Not Linked to You — Location Developer declared
- Data Not Linked to You — User Content Developer declared
Accessibility
No accessibility labels collected yet.
Versions
App Store
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5.2
iOS 4.2 and iOS 4.3 are now equally supported. If you have paid to remove the ads and now see them again, just purchase the same product again. 'Buy developer a pint' and 'Just get rid of the ads' are two separate products. You won't be charged for the product you have already paid before; just make sure it is the same one.
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6.0
* SAVING EXPOSURE RECORDS Just click 'log' button and a photo will be saved to your camera roll including all the metadata and a geotag. *Metadata Log records contain all the exposure information along with location information and meta tags attached. It is now easy to analyse your location scouting data after importing your photos into a photo management application like Lightroom or Aperture. * Dropbox integration You don't even need to import photos from the camera roll, just enable logging to your Dropbox account. * Restoring lost purchases An easy way to claim back all the pints that may have been lost when re-installing the application. * BUGFIXES If you have any problems with this version, please write us an email at [email protected]. A service release will be published in a couple of weeks time to address all possible issues.
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7.0
- Complete interface redesign - iOS 5.0 compatibility - Photostream upload - better low light sensitivity
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8.0
* The old interface is now available optionally from the settings. * Better low light performance * Completely redeveloped settings view * Switching of aperture, ISO and shutter speed scales on the fly
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8.1
* CRITICAL BUG IS NOW FIXED * The old interface is now available optionally from the settings. * Better low light performance * Completely redeveloped settings view * Switching of aperture, ISO and shutter speed ranges Please, note, it is impossible to measure illuminance (Lux) using a camera, do not trust anyone who says otherwise. A special device must be used for this type of reading. We, therefore, remove any reference to 'lux' and 'foot-candle' from our application to avoid confusion. If you used this application to measure your illuminance levels in the past, most likely you were miles away from the real number, and you must repeat your measurements using a specialised device. Don't trust anyone, an iPhone cannot replace a lux meter for industrial applications. This application, however, is a brilliant reflected light meter for photography.
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8.2
* The old interface is now available optionally from the settings. * Red focus square is now optional when logging * Lux conversion is removed Please, note, it is impossible to measure illuminance (Lux) using a camera, do not trust anyone who says otherwise. A special device must be used for this type of reading. We, therefore, remove any reference to 'lux' and 'foot-candle' from our application to avoid confusion. If you used this application to measure your illuminance levels in the past, most likely you were miles away from the real number, and you must repeat your measurements using a specialised device. Don't trust anyone, an iPhone cannot replace a lux meter for industrial applications. This application, however, is a brilliant reflected light meter for photography.
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8.3
1) iPhone 5 support. We are finally using the big screen 2) The 'old interface' is now using a larger viewfinder 3) We fixed a bug causing ads reappear sometimes after a purchase 4) You can now add notes to your logs. This can be enabled in the last section of the options screen. 5) iOS 4.2 support is dropped for technical reasons. The most recent development tools do not support it anymore.
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8.3.1
Version 8.3.1: * A critical bug is fixed: crash on iPad 2 and iPods is resolved. Version 8.3: 1) iPhone 5 support. We are finally using the big screen 2) The 'old interface' is now using a larger viewfinder 3) We fixed a bug causing ads reappear sometimes after a purchase 4) You can now add notes to your logs. This can be enabled in the last section of the options screen. 5) iOS 4.2 support is dropped for technical reasons. The most recent development tools do not support it anymore.
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8.4
Bugfix: exposure logging errors when adding a written note are now eliminated. Luxi diffuser is now supported in a separately implemented incident light metering mode. We also bring back lux/candle feet meter in this new mode.
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9.0
This is a major update with iOS 7 support. Errors fixed: * Luxi can be permanently hidden using settings * Exposure correction for production version of Luxi is improved * Illuminance in lux are now calculated more precisely Other improvements: Latest Dropbox support - now the logs are saved in application specific folder. Latest AdMob support - integration with latest Ad framework
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9.1
+ new crashes noted, update will be published before the end of October. Full iOS8 support. iPhone 6 and iPhone 6 Plus support. Crash issues on iOS8 are resolved. Completely rewritten core that would allow more new functionality in future versions.
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9.1.2
* fixed crashes when using the "old" interface * fixed a crash on pressing a hold button Full iOS8 support. iPhone 6 and iPhone 6 Plus support. Crash issues on iOS8 are resolved. Completely rewritten core that would allow more new functionality in future versions.
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9.1.3
+ some more errors fixed Full iOS8 support. iPhone 6 and iPhone 6 Plus support. iPhone 3GS is still supported. Crash issues on iOS8 are resolved. Completely rewritten core that would allow more new functionality in future versions.
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9.1.4
+ some more errors fixed + colour temperature/white balance meter is added for iOS8 devices
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9.2
+ application can be run on iPod Touch again + colour temperature/white balance meter is added for iOS8 devices + a notification will be displayed when the camera cannot measure correct exposure + some more errors fixed
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9.2.1
+ low light performance is improved
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9.2.2
+ Low light performance on iPhone 6 is improved
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9.3
SIGNIFICANTLY IMPROVED LOW LIGHT PERFORMANCE
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9.3.1
SIGNIFICANTLY IMPROVED LOW LIGHT PERFORMANCE + Fixed an error when starting on iOS 7
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9.3.2
SIGNIFICANTLY IMPROVED LOW LIGHT PERFORMANCE + Fixed an error when starting on iOS 7 + Minor error corrections
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9.3.3
+ Evernote support Logs can now be uploaded to Evernote© + minor bugs smashed
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9.4
- Low light performance is significantly improved. - Fixed bugs with hold button
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9.5
* Advertising and in-app purchases are removed * User interface adjusted to work with iPhone XS * Multiple bug fixes and corrections
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9.6
Works on iOS 18! The app was completely rewritten to avoid crashes that we experienced recently. Everything is back in order now!
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9.6.1
· 19 Feb 2025
Works on iOS 18! 9.6.1: Text color in Dark Mode is fixed. The app was completely rewritten to avoid crashes that we experienced recently. Everything is back in order now!
Alternatives
- Massive Dev Chart Timer — Same category + similar ratings
Availability by market
- US
Data quality & evidence
- Page completeness
- Live store listing
- Last verified
- 31 Jul 2026
- Sources
- App Store
- Independent summary has not been published yet.
- Screenshots: not yet collected