# Qalculate! (open-source utility app)

> Qalculate! is a free, open-source utility app for Android. Powerful and versatile multi-purpose calculator. It has 487 GitHub stars and is released under the GPL-2.0-only license, and you can install it from F-Droid and Google Play.

Qalculate! - the ultimate multi-purpose calculator - is now finally available on Android! It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation). Features include a large library of customizable functions, unit calculations and conversion, physical constants, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation or interval arithmetic.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/jherkenhoff/qalculate-android |
| Platforms | Android |
| Built with | Jetpack Compose |
| GitHub stars | 487 |
| License | GPL-2.0-only (open source) |
| F-Droid | https://f-droid.org/packages/com.jherkenhoff.qalculate/ (package com.jherkenhoff.qalculate) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=com.inidamleader.ovtracker |
| App Store | not linked |
| Website | none listed |
| Official | no |
| Category | Utilities |
| Latest release | v0.2.3 (Aug 11, 2026) |
| Last commit | Sep 2, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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