FlexCalc: Flexible Calculator
In-app purchases
star
22K reviews
PEGI 3
info
10L+
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PEGI 3
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About this app
FlexCalc is free forever, with no ads, no tracking, and no limits.
FlexCalc is a flexible calculator designed for editable calculations, linked values, history, and instant result updates.
Unlike a standard calculator, FlexCalc lets you tap any number or result, edit it directly, and see related results update automatically. You can reuse results in new calculation lines, drag linked values between lines, and adjust formulas without retyping everything.
Key features:
- Edit any number in your calculation and instantly update the result.
- Reuse results as linked values in new calculation lines.
- Drag linked values to replace, insert, or adjust calculations faster.
- Move the cursor inside numbers for precise edits.
- Review and restore previous work with calculation history.
- Share calculations as text or an image.
- Customize the app with different themes and fonts.
- Use scientific functions and custom constants when you need more than basic math.
FlexCalc is built to stay simple, fast, and distraction-free.
FlexCalc is a flexible calculator designed for editable calculations, linked values, history, and instant result updates.
Unlike a standard calculator, FlexCalc lets you tap any number or result, edit it directly, and see related results update automatically. You can reuse results in new calculation lines, drag linked values between lines, and adjust formulas without retyping everything.
Key features:
- Edit any number in your calculation and instantly update the result.
- Reuse results as linked values in new calculation lines.
- Drag linked values to replace, insert, or adjust calculations faster.
- Move the cursor inside numbers for precise edits.
- Review and restore previous work with calculation history.
- Share calculations as text or an image.
- Customize the app with different themes and fonts.
- Use scientific functions and custom constants when you need more than basic math.
FlexCalc is built to stay simple, fast, and distraction-free.
Edit, link, and reuse calculations with instant updates.
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Ratings and reviews
21.1K reviews
Qaish
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9 September 2026
update request: kindly add haptic feedback when you clear all history at once. it was there before I guess. honestly the best calc app. simple and precise without useless options and features which we never use, which just takes up memory and storage. 5 stars
2 people found this review helpful
todayweather.co
9 September 2026
Hi Qaish! Thanks for the great review. We’ll share your request about adding haptic feedback when clearing all history with the FlexCalc development team for consideration.
Erin Cardinal
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20 September 2026
Teal is my favorite color. This is a really good app, but I wanna be able to choose the "light cyan" theme and still have it be dark mode. All of the color themes should be available in light and dark mode. I would rate 5 stars and even buy a few of the support options if that was added. I also cannot seem to figure out how to delete all of the calculations at once, because even if I open the history and clear that, the rest of them stay on my screen.
todayweather.co
20 September 2026
Hi Erin, thanks for the great feedback! We’ll share your suggestions about adding “light cyan” in dark mode and making theme options work consistently in both modes with our development team.
thefinaldegree (thefinaldegree)
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30 June 2026
Latest update wipes calculation history, removes the slide to open history, changes out some icons and introduces a new user guide. claims no ads anymore, but I'd never seen an ad previously 🙃
1 person found this review helpful
todayweather.co
1 July 2026
Hello!
Thanks for your feedback. We’ve just released a new update that fixes these issues. Please update to the latest version and give it another try. If you still notice anything unexpected, we’d be happy to hear from you.
— FlexCalc
What's new
Version 3.0.1-3:
- FlexCalc is now available on iOS.
- Improved touch accuracy.
- Drag values to replace, insert, or reuse them.
- Move the cursor inside numbers for more precise edits.
- Added calculation history, with an option to turn it on or off in Settings.
- Added shortcuts for faster input and editing.
- FlexCalc is now available on iOS.
- Improved touch accuracy.
- Drag values to replace, insert, or reuse them.
- Move the cursor inside numbers for more precise edits.
- Added calculation history, with an option to turn it on or off in Settings.
- Added shortcuts for faster input and editing.
PEGI 3
Learn moreApp support
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Phone number
+84933377713
About the developer
Trần Thanh Thọ
todayweather.co@gmail.com
22 Đường 3 Park Riverside, Phú Hữu
Thành phố Hồ Chí Minh
Vietnam
