FlexCalc: Flexible Calculator
4.6star
22K reviews
Rated for 3+
info
500K+
Downloads
Rated for 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.
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Ratings and reviews
4.6
21K reviews
Android
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July 4, 2026
FlexCal is probably the best calculator for Android⭐⭐⭐⭐⭐ And since it is now offered free of charge, I'd invite others to consider supporting the developer's other apps by purchasing them, including Today Weather & 1Gallery that are equally top notch. Recognizing & supporting great software is important. On a side note, updated app icon on the lastest version of FlexCal (with the green swirly arrow) was unnecessary & not nearly as clean and simple as the previous one was. Keep up the good work!
2 people found this review helpful
todayweather.co
July 4, 2026
Hi! Thanks so much for the kind words and for supporting FlexCalc. We really appreciate your feedback about the new icon and will pass it along to the team. Enjoy using the app!
John Walker
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June 30, 2026
Seriously, this has been my go-to calculator for years, for personal, basic business stuff, and workshop. (Thanks for adding the opening tutorial. Just learned about drag and drop, which I didn't know was in there. Very helpful feature and tutorial.)
todayweather.co
June 30, 2026
Hello John! Thanks for the kind review and for sharing how you use FlexCalc. We’re glad the opening tutorial and drag & drop feature helped. Really appreciate your support!
thefinaldegree (thefinaldegree)
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June 30, 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 🙃
todayweather.co
July 1, 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 3.0.0-7:
- Rebuilt FlexCalc to prepare for iOS support.
- 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.
- Optimized the app to reduce lag and improve overall responsiveness.
- Rebuilt FlexCalc to prepare for iOS support.
- 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.
- Optimized the app to reduce lag and improve overall responsiveness.
Rated for 3+
Learn moreApp support
phone
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
