# NerdCalci (open-source utility app)

> NerdCalci is a free, open-source utility app for Android. Calculator for nerds with variables, syntax highlighting, and file sessions. It has 213 GitHub stars and is released under the GPL-3.0-or-later license, and you can install it from F-Droid and Google Play.

NerdCalci is a powerful calculator designed for nerds and power users who need more than basic arithmetic. Features: - Offline - Works without internet - Variable support - Define variables and reuse them in calculations - Percentage calculations - Natural syntax like "20% of 50000" or "15% off 1000" - Unit conversions - Natural syntax like "10 m in feet" or "100 kmph to mph" - Calendar-aware date and time engine with timezone support - Custom functions - Define your own functions with multi-statement support and scope isolation - Dynamic variables - Quickly compute block sums (total) and averages (avg) - Syntax highlighting - Color-coded numbers, variables, operators, and comments - Smart…

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/vishaltelangre/NerdCalci |
| Platforms | Android |
| Built with | Kotlin |
| GitHub stars | 213 |
| License | GPL-3.0-or-later (open source) |
| F-Droid | https://f-droid.org/packages/com.vishaltelangre.nerdcalci/ (package com.vishaltelangre.nerdcalci) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=com.vishaltelangre.nerdcalci |
| App Store | not linked |
| Website | https://github.com/vishaltelangre/NerdCalci |
| Official | no |
| Category | Utilities |
| Latest release | v4.9.7 (Aug 26, 2026) |
| Last commit | Aug 26, 2026 |

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

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