NerdCalci

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 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

- Tags - Organize files with custom tags

- Pin files - Keep frequently used files at the top

- Search - Search your files easily by name or tag

- 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