Lumolight: Screen & Flashlight vs NerdCalci
Side-by-side comparison of two open source alternatives
Lumolight: Screen & Flashlight
Lumolight is an open-source flashlight app that can perform both front and back flash. The app is designed based on the "Material You" design system and it looks stunning. The app supports both light and dark themes and supports dynamic theming. It uses the screen as a front flash by brightening up and showing some static colors that the user chooses and it uses the flashlight for the torch mode. It has "Tile support" where you can use the front flash without even opening the app, and also adjust the brightness using the volume keys The customization option is one of the strong parts of this app. For the front flash, you can choose: Colors: Which color do you want to light up Duration: For how long it will be active. Brightness: The level of brightness you want. For the back flash: Duration: For how long it will be active. BPM (Blink per minute): You can blink your flashlight and also adjust its value. Flash-strength: You can also adjust the flashlight's strength. (Supported devices only) We are constantly improving our app by adding exciting features and fixing any issues that arise. With this app, you can be sure it will bring a good user experience.
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" - 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.
| Feature | Lumolight: Screen & Flashlight | NerdCalci |
|---|---|---|
| License | GPL-3.0-only | GPL-3.0-or-later |
| Install sources | F-DroidGitHubIzzyOnDroid | F-DroidGitHubIzzyOnDroid |
| Categories | OfficeProductivity | OfficeNotesProductivity |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |