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
- Utilities
- Education
AppCorpus categories
Key functions
| Function | Availability | Access | Scope | Evidence |
|---|---|---|---|---|
| In-app purchases | Yes | Limited free | — | Store published |
Screens
App Store
15 store screenshots
Pricing & paywalls
App Store
- Price: $9.99
- Multiple History Tapes — $9.99
Ratings & reviews
App Store
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1/5Do not purchase they take what you paid for and make it worse to get you to pay more money
I originally bought this as a paid app! This developer has turned into a predatory money robbing group that takes away your ability to clear history and now locks you out of the history section unless you pay them more money for a ability to have multiple history pages which I don’t need! Once you buy something from someone the developer should not have the ability to make it worse just to go to you for more money! Now instead of clearing history I’ll line items at one time I am locked out of the ability to do that and have to manually clear each line item one at a time making it worse for the customer! so this developer is trying to go just for more money by making something worse than taking away what we paid for and then expected us to be happy and give her more money! this used to be one of the better calculator apps! but now they’re choosing to just screw their customers over to make more money by taking away what they paid for to make them pay to have a user-friendly app!
Dale in TX · 5 Sep 2026
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5/5Nearly Perfect!
Tried many calculators (free & paid). HD Pro surpasses the others by far! The most important thing is, it's incredibly User-friendly. My list of Likes keeps growing yet, my Wish list only has tweaks to 'customize' the Tape. Likes: 1. Ergonomic - Easy to access & read. The keys are large enough for clumsy fingers. The screen displays numbers clearly. 2. Can use in Portrait or Landscape modes. 3. History: Retains Tape w/ALL previous calculations. Typically, apps limit history to a certain size. 4. Can use data from tape (the result or as actual input) in current calculations . Wish List/Customize Tape: 1. Add 'Label/Notation' for each item. This would help user ID calculations among many similar ones or highlight important ones. 2. Editing: Let user Add/Change labels on historical calculations. 3. Deleting: Allow selection of individual Tape items for Deletion (as alternative to 'deleting all'). Currently, one must retain the entire tape if historical results are valuable enough to hang on to. Without the relevant historical data, I'd be recalculating same data a lot & wasting time!
SeahawkMoe · 5 Sep 2026
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5/5Simple and Sweet!!
This is just what I was looking for... 👍 It has percentage % which comes in handy with sales tax! It even has both Basic and a Scientific calculators, and it is Beautiful too! The $ cost is worth having no commercials! And it has the option to have a paper trail. Gives you each item and the total that you can print out! And a correction key to go back and make corrections without starting over! Truly wonderful! Thank you! PS. Personally, it would be better to have the "Plus/+" sign be the BIGGEST BUTTON instead of the = button that I use much much less! Just a thought...
Twylalalalala · 5 Sep 2026
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5/5Why is it so hard?
Why was it so difficult to find a good calculator? I went through about 10 of them. It seems inconceivable that Apple didn’t have a calculator app for the iPad. Doesn’t it make sense that you would use split screen in order to load up financial apps and then want a calculator? And not a flashy thing, but a workhorse that can be used without distraction? This is perfect. No ads, no recurring subscription, no distractions, but a tape function, a usable layout, and the ability to use with other apps. Nice job dev. I wasn’t looking for my phone, but I gave it an honored spot on my phone home screen as well.
IamSporkette · 5 Sep 2026
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5/5BEST CALCULATOR for ELDERS!
I can’t do without it, have it on both iPads & iPhone. The reason I love it is that it is so easy to use. I’m not great with arithmetic so I need to use a calculator for all adding etc. And since most of the buttons on any calculator no sense at all to me, I love that this one has 3 layouts to choose from, including the simple one with big buttons that are easy to see. It does offer a sophisticated sciencey layout for those who want it. I can keep the “adding tape” in a list for later reference. This is truly a must have calculator for other elders who have vision troubles and/or lack mathematical sophistication as I do, yet an accountant or scientific sort would have their needs met too.
Halmeowni · 5 Sep 2026
Privacy & accessibility
App Store
Privacy
- Data Not Collected Developer declared
Accessibility
- Dark Interface — SUPPORTED Store published
- Differentiate Without Color Alone — SUPPORTED Store published
- Larger Text — SUPPORTED Store published
- Sufficient Contrast — SUPPORTED Store published
- VoiceOver — SUPPORTED Store published
Versions
App Store
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4.10
- Improved button click sounds. - Fixed issue with plus minus button not working correctly for some regional number formats. - Fixed issue with scientific notation not always being parsed correctly. - Widget - fixed issue with widget not syncing with the app. - Widget - added equals repeat. - The default maximum decimal digits has been changed to 8. Can still change this in settings up to 12. - Overall performance improvements.
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4.11
- Added volume control for the button clicks. - UI improvements.
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4.11.1
- Fixes issue with landscape layout 3 not always displaying correctly.
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4.11.2
- Fixed issue with tape edits not always being saved when switching to the widget. - Miscellaneous performance improvements.
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4.11.3
- Miscellaneous improvements.
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4.11.4
- Miscellaneous improvements.
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4.12
- UI improvements and bug fixes. - Added the date and time to the history tape when sharing. - Added copy and paste to the Today View Widget. - Fixed issue where pasting into the input sometimes did not work.
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4.12.1
- UI improvements and bug fixes
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4.13
・Added dark and tinted icons. ・Miscellaneous improvements and bug fixes.
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4.13.1
・Bug fixes and performance improvements.
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4.13.2
・Bug fixes and performance improvements.
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4.14
- UI Improvements
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4.15
・New: Paid version can now import data from the free version ・Improved translations across all supported languages ・Minor bug fixes and performance enhancements
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4.15.1
・Bug fixes and performance enhancements
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4.15.2
· 19 Mar 2026
- Bug fixes and performance improvements.
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4.6
Additions: - Updated the label input on the history tape so that you can now change the label color before hitting enter. - New dark mode and settings - auto, dark, or light. Changes: - Swipe gestures on the input have been removed. - Eliminated blinking cursor from widget. - Gold, Rose Gold, Silver, Snow, and Glow themes have been improved. - Updated help screens. - UI improvements. Bug fixes: - Fixed issue with Copy From Clipboard message appearing on launch.
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4.6.1
- Added a Setting to allow you to adjust the History Tape Height (affects only the History Tape layout while in Portrait orientation). - Fixed an issue with Voiceover not working for the numbers and operators on the keypad.
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4.6.2
- Added number formatting support for more countries.
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4.7
- Added ability to change decimal notation - Bug fixes
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4.7.1
- Minor bug fixes affecting editing and formatting
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4.7.2
- Fixes issue that may cause the loss of a decimal while editing an equation.
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4.7.3
- Miscellaneous Improvements
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4.8
- Added haptic feedback to the buttons (can be toggled on or off) - Fixed bug with Multiple History Tape title not updating after switching tapes.
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4.9
- UI improvements
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4.9.1
- Added workaround to fix an iOS 16 layout bug preventing scrolling of the input.
Alternatives
- Calculator-- — Same category + similar ratings
- Calculator Max — Same category + similar ratings
- Calculator⁻ — Same category + similar ratings
- Basic Calculator: Classic Calc — Same category + similar ratings
- DayCalc - Note Calculator — Same category + similar ratings
- Calculator%. — Same category + similar ratings
Availability by market
- US
Data quality & evidence
- Page completeness
- Live store listing
- Last verified
- 5 Sep 2026
- Sources
- App Store
- Independent summary has not been published yet.