clementwzk/OpenCalc
A simple and beautiful calculator for Android downloaded more than 300k times observed · 2026-08-28
Health v2 · maintenance only
78/100
- Activity 91
- Release rhythm 48
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: 1.5
- age_days: 1507
- days_rel: 346
- days_push: 54
- n_releases_24m: 7
Adoption not part of the score
1518 stars · 184 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
OpenCalc is a simple, lightweight, open-source calculator app for Android built in Kotlin. It offers scientific mode, calculation history, multiple themes including Material You, and is available via Google Play, F-Droid, and GitHub.
Use cases
- replace the stock calculator on my Android phone
- open-source calculator app with no ads and no unnecessary permissions
- scientific calculator with history for Android
- small APK calculator that works offline
- calculator with dark and amoled themes
- calculator available on the lock screen
- fdroid calculator app with material you support
When to choose
- you want a free, ad-free, privacy-respecting calculator on Android
- you need a lightweight calculator (~2MB APK) with scientific functions and history
- you prefer installing apps from F-Droid or GitHub instead of proprietary alternatives
When to avoid
- you need graphing or advanced symbolic math capabilities
- you are not on Android (requires Android 5.0+)
- you need a calculator with unit conversion or currency features not listed
Facets
application · maturity active
gui android-tools developer-tools cross-platform calculator scientific-calculator open-source-android fdroid material-you lightweight android
1 source
- readme: https://github.com/clementwzk/OpenCalc · fetched 2026-08-28 · 00bbbe251139
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| clementwzk/OpenCalc | main | 78 |
For agents
markdown · JSON · MCP: product_card(name="clementwzk/OpenCalc")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem