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NerdCalci

Calculator for nerds with variables, syntax highlighting, and file sessions
New in version 1.9.0
- Added `sum` and `total` aggregate keywords to calculate the sum of all line results in the current block (up to the nearest blank line)
- `sum` and `total` are aliases; both can be used inline in expressions (e.g. total * 0.05)
- Explicit reassignment (e.g. total = 4) overrides the aggregate meaning
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"
- Syntax Highlighting - Color-coded numbers, variables, operators, and comments
- 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, making it ideal for developers, students, accountants, and anyone who frequently works with numbers.
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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 1.9.0 (190) suggested Added on Mar 06, 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
    • run foreground service
      Allows the app to make use of foreground services.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.vishaltelangre.nerdcalci.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 11 MiB PGP Signature | Build Log

    • New in version 1.8.0
    - Introduced a custom expression engine replacing the external unmaintained `exp4j` library.
    - Added a comprehensive in-app Language Reference accessible from the Help screen.
  • Version 1.8.0 (180) - Added on Mar 06, 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
    • run foreground service
      Allows the app to make use of foreground services.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.vishaltelangre.nerdcalci.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 11 MiB PGP Signature | Build Log

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