Calculator vs Lumolight: Screen & Flashlight
Side-by-side comparison of two open source alternatives
Calculator
Calculator Hide File App is a smart Android app that looks and works like a regular calculator but secretly functions as a secure file vault. Keep your private images, videos, documents, and other files safe with a hidden passcode while enjoying a fully functional calculator interface.Key Features:Dual Functionality: A real calculator that doubles as a hidden file vault.Secret Passcode: Unlock your hidden files with a private code only you know.Secure File Manager: Hide, unhide, and organize your files easily and safely.Fast & Lightweight: Smooth performance on all Android devices.No Root Required: Fully functional without rooting your device.File Encryption: Protect your hidden files with strong encryption.Why Choose Calculator Hide File App?Completely secure and discreet – no one will suspect your files are hidden.Works like a normal calculator while keeping your private files safe.Supports images, videos, documents, and other file types.Open-source and transparent – you can inspect the code yourself to ensure your privacy.How It Works:Use as a Regular Calculator: Perform standard arithmetic operations without revealing the hidden vault.Enter Secret Passcode: Type your code and press "=" to access your hidden files.Manage Hidden Files: Add, remove, and organize files safely. Files remain protected even after closing the app.Requirements:Android 6.0 or higherStorage permissions enabled“Manage All Files” permission for Android 11+ devicesTechnologies Used: Kotlin, XML, Secure internal storage & MediaStore APIWhy You’ll Love It: Keep your files completely hidden, enjoy a real calculator interface, and benefit from an open-source, lightweight, and secure app. Protect your privacy with ease!
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.
| Feature | Calculator | Lumolight: Screen & Flashlight |
|---|---|---|
| License | Apache-2.0 | GPL-3.0-only |
| Install sources | F-DroidGitHubIzzyOnDroid | F-DroidGitHubIzzyOnDroid |
| Categories | Password ManagerCalculatorOfficeProductivity | OfficeProductivity |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |