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NerdCalci

Calculator for nerds with variables, syntax highlighting, and file sessions
New in version 3.8.6
- Added a toggle to turn off "Result precision" and see full unrounded results (Issue #134).
- Fixed a bug that could cause the app to hang when toggling Rational Mode on certain scientific notation inputs.
- Fixed the result precision ellipsis (`…`) styling for results with units (e.g., `(1/3) km`).
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"
- 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 error diagnostics - See human-friendly explanation of math or syntax errors
- Auto-completion - Smart suggestions for variable names
- Comments - Document your calculations with # comments
- Multiple files - Organize calculations in separate files with auto-save
- Pin files - Keep frequently used files at the top
- Search - Search your files easily
- Duplicate files - Create a copy of a file with a new name
- Undo/Redo - Up to 30 steps per file
- Backups - Automatically or manually backup your files to app storage or a custom folder
- Restore from backups - Restore your files from backups
- Copy with results - Copy calculations with their results
- Export - Share your calculations as a PNG image or a multi-page PDF
- Dark/light theme - System, dark, or light mode support
- Line numbers - Easy reference and navigation

Perfect for:

- Quick calculations with reusable values
- Budget planning and financial calculations
- Unit conversions and formulas
- Educational purposes and learning
- Any scenario where you need to document and reuse calculation values

NerdCalci combines the simplicity of a calculator with the power of a text editor. As a capable alternative to text-based calculators like Numi, Calca, and Soulver, it is ideal for developers, students, accountants, and anyone who frequently works with numbers.

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 3.8.6 (386) suggested Added on Apr 26, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions

    Download APK 2 MiB PGP Signature | Build Log

  • New in version 3.8.5
    - Fixed app crash when using the power operator (^) on Android versions earlier than 12 (Issue #152).
    - Improved pow() stability for large and edge-case exponents (Issue #149).
    - Fixed suggestion popup from obscuring shortcut bar (Issue #143).
  • Version 3.8.5 (385) - Added on Apr 23, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions

    Download APK 2 MiB PGP Signature | Build Log

  • New in version 3.8.4
    - Stabilized the power operator (^) with safety limits and human-friendly error reporting (Issue #149).
    - Added support for scientific E-notation and ensured that Euler's number constant is only through 'e' (Issue #150).
    - Fixed deletion and renaming issues for newly duplicated files when synchronization is enabled (Issue #148).
  • Version 3.8.4 (384) - Added on Apr 20, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions

    Download APK 2 MiB PGP Signature | Build Log