FlexCalc: Flexible Calculator

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In-app purchases

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.

Ratings and reviews

This use to work great before they started putting in ads, now it has a defect where after a few lines of entries you can't see the bottom (aka the active part) of the screen. I paid for the pro version, but that didn't help (the ads were gone, but the defect still exists). Too bad, this was one of the best calculators out there (with the exception that it never really did negative numbers). Hey devs, product manager .. this should be an easy bug to fix!!!

The comma and decimal have become swapped. I'll change the rating to five stars once it's fixed. Edit: I did find the option that allows the change. the app is back to working as expected, thank you. this has been my favorite calculator app for years and always one of the first apps I make sure is installed and I set shortcuts to when I get a new phone.

It's been the best calculator but after the last update the screen does not scroll to where the cursor is typing, so you can't see what you type until you scroll down. It was doing it before the update so I trust it should be an easy fix. other than that I've been a satisfied paid user for a long time! EDIT: the update fixed it! thank you for your help

What’s new

Version 3.0.0-8:
- 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.