Open Source

Port of Quake 2 to Android. Has virtual keyboard, on-screen and sensor controls. You can use built-in downloader to automatically fetch Quake 2 demo files from number of mirrors or manually copy pak0.pak and other required files from your installation's baseq2 directory to /sdcard/baseq2.

QuandoInTV helps you keep track of the broadcast schedule of TV programs, movies, and TV series. Compatible with Android 7.0 (Nougat) and above.

Chat comfortably. Everywhere. REQUIRES A QUASSEL CORE – DOES NOT WORK AS STANDALONE IRC CLIENT • Use IRC on the go – thanks to the Quassel core, you’ll never miss anything • Always have your entire chat history available – just scroll up to load older messages, the core keeps them for you • Be notified when someone messages you – even if you had no connection in the meantime If you are looking for the comfort you’re used to from modern chat apps, Quasseldroid is the best free android IRC client for you — you’ll get profile pictures, a beautiful UI based on Material Design, and all the features you love. And best of all, it’s fully free and open source. Requirements: You need to have an account on a Quassel core to use this app. If you have none, you can either set a core up yourself, or check if you can get an account on someone else’s core. This app only works with cores that run at least Quassel v0.10, for all features to be available you’ll need Quassel v0.13 To learn about how to set up a quassel core, see the wiki Having trouble or feedback?: Send us an email at support@kuschku.de

Security-focused desktop OS that isolates applications in separate virtual machines.

I was tired of launchers that look like airplane cockpits. I wanted one that just launches apps. So I made Quedalle — French slang for "absolutely nothing": Quedalle in useless widgets. Quedalle in flashy animations. Quedalle in endless menus. But also: Quedalle in ads. Quedalle in tracking. Quedalle in mandatory logins. Quedalle in paid features. Quedalle in internet permissions. Just a launcher. A tile grid. Your apps. That's it. TILES - App tiles — with live notification badge counts - Spacer tiles — colored blanks to structure your grid - Divider tiles — thin lines between tile groups CUSTOMIZATION - Drag and drop to reorder any tile - 12 color presets per tile, plus app-color and transparent - Inline app search PRIVACY - No internet permission - No analytics, cloud sync, or accounts - Open source under GPL-3.0

Queens is a challenging crown-placement logic puzzle game where you place queens on a grid of colored regions. How to play: - Place exactly one queen in each row. - Place exactly one queen in each column. - Place exactly one queen in each colored region. - Queens cannot touch each other, even diagonally (no adjacent placements). Why you'll love it: 🚫 NO ADS, EVER No banners. No interstitials. No rewarded videos. Just pure, uninterrupted gameplay. 📊 ZERO TRACKERS No analytics. No data collection. No tracking of any kind. Your gameplay is yours alone. ♾️ INFINITE LEVELS Procedurally generated random puzzle sizes from 5x5 up to 9x9, plus 150+ structured progression levels that scale all the way up to a massive 16x16 grid. 🔒 COMPLETELY OFFLINE No internet permission required. Your progress is saved locally using high-performance Hive persistence. Play anywhere, anytime.

QSP, она же Quest Soft Player - простая в освоении система разработки текстовых игр, преимущественно с "менюшным" вводом (существует возможность создания полноценного парсера).

Task management app. The queue instead of a task list to force execution order. Lightweight and simple.

A floating ball that provides quick access to system functions like volume, brightness, and screen lock. The ball stays visible over all apps and automatically hides on the lock screen. Features: - Quick Actions: Access volume, brightness, and lock screen controls instantly - Always Visible: Floating ball appears over all apps when unlocked - Smart Positioning: Remembers last position after screen unlock - Auto-Hide: Automatically hides on lock screen and shows on unlock - Draggable: Touch and drag to move anywhere on screen - Auto-Snap: Snaps to screen edges when released Security Note: QuickBall requires Accessibility and Modify System Settings permissions to function. These permissions are used only for the floating ball functionality, system actions, and controlling screen brightness. The app does not access, store, or monitor any personal data.

Improve your maths calculation speed with this app. ## Features - Addition, Multiplication, Subtractions, Division, Simplification, Simplification Advance, Miscellaneous. - Custom Range for numbers. - Timer (30s to 10 minutes). - Numbers are generated randomly in Custom Range provided by you. -

Quick Dice Roller is an app made for the tabletop RPG Geek. It allows to emulate almost all the complex dice rolls required by RPG and board games. The dice can be added at will and organized in dice bags. Each die is defined by a formula such as "2d6+5" as well as special functions like "rak(1d6,4,3)" that allow to emulates the most complex game systems. An handy formulas builder simplifies the process, and allow to access to an online help. Check the list of all supported functions. Thanks to "named values", as well as keep track of games scores, you can define formulas using variable parameters. You can create, for example, the named value "Level" with label "lvl", then use the formula "(lvl)d6" to determine the fireball damage. So when your mage level up you don't need to edit the formula: just change the "Level" value! Main features of Quick Dice Roller: * Organize dice in dice bags * Use same formulas you're familiar to (xdy+z) * Simple and intuitive Formulas Builder * Many functions to emulate main systems * Keep track of scores and use them in formulas * Read or listen rolls result in a clear way * Apply modifiers on the fly with a touch * Sum a roll to the previous automagically or on demand * Paste last roll result from the clipboard in another app * Keep track of last rolls made

Quickly draw anywhere on your screen using a floating bubble and a simple, yet powerful drawing canvas. The app will create a popup icon, clicking that icon will open a drawing area. Draw and sketch in the provided area, when you are done click the save button. Features: * Save and view images * Draw/erase * Undo button

Quick Search is a fast Android launcher and search app that unifies results from apps, app shortcuts, contacts, calendar events, files, device settings, app settings, and the web—plus built-in tools like calculator, unit converter, currency converter, and optional AI search. Search everything • Apps and shortcuts with smart ranking and typo tolerance • Contacts with call, text, and messaging integrations • Calendar events, notes, files, and folders • Android system settings and Quick Search settings • 25+ web search engines with customizable shortcuts Tools from the search bar • Calculator, unit converter, currency rates, world clock, date math • Optional AI answers when you add your own API keys (Gemini, OpenAI, Claude, Groq, or compatible APIs) Customize your experience • Overlay mode, home screen widgets, Quick Settings tile, or default launcher • Themes, Material You colors, wallpapers, bottom search bar, and font size • Import/export settings and granular permission controls Privacy Search runs on your device. There are no ads or analytics. Network access is used only for features you enable (web search, optional AI, currency rates).

Quick Settings provides quick access to various Android system settings, such as WiFi, GPS, brightness and all the various volume controls. Can be launched by long-pressing the hardware search key, or via the status bar. Anti-feature: Addons. Promotes other apps that aren't FOSS. Status: This app won't receive any further updates as the author is not publishing the source code for the newer versions (or indeed, older versions).

Quick Timer Tile makes managing your time effortless and distraction-free.Add it to your Quick Settings, and you’re ready to go – no app icon or traditional interface. Everything happens through a timer dialog and notification.How to get started:Add the Timer to Quick Settings:Swipe down from the top of your screen to open Quick Settings.Tap the pencil icon or "Edit" to customize your tiles.Drag the "Timer" tile into the active area.Set up your timer:Tap the "Timer" tile to open the timer setup dialog.Grant notifications permission (if needed).Use the pickers to set the desired time and press "Start".Follow the Timer in Notifications:Once the timer starts, a notification shows the remaining time.Pause, resume, or cancel the timer directly from the notification with one tap.Why use Quick Timer?Quick access: start a timer in seconds straight from Quick Settings.No clutter: no app screen or icon – just a clean, efficient experience.Convenient notification: always know how much time is left at a glance.Perfect for cooking, workouts, or any activity where timing matters!

Stop fumbling. Start receiving.Quick UPI is the fastest way to request payments on Android. Forget opening heavy banking apps, navigating endless menus, and waiting for server connections just to show your QR code.Simply swipe down, tap the Quick Settings Tile, enter an amount, and boom—you're ready to get paid.🚀 USE CASES:The "Split Bill" Speedster: Flash a custom QR for exactly your share before friends can even unlock their phones.Delivery Agents: Generate exact amount QRs instantly. No more disputes over change.Taxi & Auto Drivers: Create dynamic QRs for every ride.Small Shop Owners: Type amount, show QR, next customer.Privacy Pro: Receive payments without shouting your phone number.✨ FEATURES:Quick Settings Tile: Instant access from your notification shade.Zero Lag: App opens instantly.Custom Amounts & Notes: Add context like "Dinner" or "Cab".Recent Amounts: Smart chips remember your frequent values.Offline Generation: No internet required to create the QR code.Material 3 Design: Sleek, modern, and beautiful.Privacy First: Your data stays on your device.The app is completely open source and respects your privacy. No ads, no tracking.Inspired by the simplicity of WhatsAppNoContact.

Resurrection of https://f-droid.org/packages/com.hughes.android.dictionary to a new maintainer. Uses data from Wiktionary and Beolingus to generate dictionary files that can be used offline. These can be downloaded from within the app. These can also be generated automatically, though documentation for the process is currently missing.

Lightweight photo editor where you can crop your images, paint over them, add text and even add exciting filters to make it stand out on social media. Save the edited images locally or share them directly to your friends through any other social media app.

QuickMDCapture allows you to quickly create notes in Markdown format from the notification bar. This allows you to quickly create notes, as the notification panel can be opened quickly without distracting you from another app, such as the e-book you are reading. Originally, the app was created to work with Obsidian, but it can also be used with other note-taking apps that support the .md format if needed.The app creates a persistent notification in the notification panel.

QuickNotes helps you capture, organize, and review ideas quickly. Key features: - Create, edit, and delete notes with instant search across titles, content, and tags. - Apply tag-based filters to focus on the ideas that matter right now. - Enable optional AI-powered auto-tagging by providing your own OpenAI API key. - Schedule reminder notifications so you never miss an important thought. QuickNotes is free and open source. Set up goes fast—install the app, add your notes, and personalize reminders in just a few taps. Your data stays on-device unless you choose to use AI-assisted tagging via an external API key that you control.

QuickSE is a lightweight and open-source Android utility for rooted devices that helps you manage SELinux mode with ease. Core Features: * Instantly view the current SELinux status. * Toggle SELinux mode between Enforcing and Permissive. * Enable Auto-toggle on boot to apply your preferred SELinux mode automatically after restarting. * Schedule automatic SELinux mode changes at a specific time. * Get notified whenever SELinux mode changes occur. Kernel Inspector: Access low-level device info from /proc and other system files: * Kernel information * Loaded kernel modules * Kernel symbols * Kernel configuration * System uptime * System load average * CPU information * Memory information * Kernel logs Built entirely with Jetpack Compose and Material3. Contributions, forks, and feedback are welcome.

Transform the way you capture and share screenshots with QuickShot Share – the fastest screenshot sharing app. Say goodbye to the tedious process of taking a screenshot, opening your gallery, and then sharing it. QuickShot Share streamlines this entire workflow into a single, swift action. 🚀 Quick and Easy: Long-press your home or power button (depending on your device), and QuickShot Share jumps into action. It’s the quickest method out there - perfect for capturing fleeting moments or sharing live screen information. 📸 Instant Screenshot Capture: With QuickShot Share, a screenshot is captured instantly with the gesture you already use. Whether it's a long press of the power button or another gesture, we've got you covered. Compatibility varies with devices, but most new models support this intuitive feature. 🌐 Immediate Sharing: The moment your screenshot is taken, a share dialog appears. No delays, no need to switch apps. Share your screenshots instantly with any social media, messaging app, email, or cloud storage. 🔧 Customizable and User-Friendly: QuickShot Share is designed for efficiency and ease of use. It integrates seamlessly into your device's system, replacing the assistant gesture for straightforward access. 📱 Device Compatibility: Designed for newer devices, QuickShot Share supports most recent models and standard gestures. Experience may vary based on your device's unique specifications.

Quick-Tile Settings offers customizable Quick Settings tiles for Private DNS and USB debugging. Quickly toggle settings and auto-revert when needed. Features: Private DNS Tile Cycle: Off, Auto, custom hostnames Predefined providers: Cloudflare (Performance & Privacy), AdGuard (Ad/Tracker Blocking), Quad9 (Security) Add, edit, or delete custom DNS entries Select which entries appear in the cycle Optional auto-revert after a configurable delay USB Debugging Tile Toggle: On ↔ Off Configurable cycle or fixed states Optional auto-revert User-Friendly Configuration In-app settings with tab navigation Clear ADB guidance for granting WRITE_SECURE_SETTINGS Modern UI: Jetpack Compose, Material You (Android 12+) Requirements: Android 9 (API 29) or higher WRITE_SECURE_SETTINGS permission via ADB (one-time setup) Setup & Usage: Grant ADB permission: Follow the in-app instructions for a one-time setup. Configure tiles: DNS: select Off/Auto and manage hostnames. USB Debugging: select On/Off. Set auto-revert delays as desired. Add tiles: Add "DNS" and "USB Debugging" to your Quick Settings panel. Use: Tap to toggle; long-press to open settings.

QuickTiles lets you add custom quick settings tiles to your Android device, enabling fast access to your favorite actions and shortcuts. The app is open source and privacy-friendly. Features: - 🎵 Media control (play/pause, next, previous, media volume) - 🔊 Show volume panel - 📅 New event/alarm/timer - 📞 Make call - 📷 Take photo/record video - 🧮 Open calculator/file manager - 📱 Open custom apps - 🔍 Search settings - 🌐 Open languages - 📖 Open dictionary/privacy - 🔗 Open VPN/data usage/screen cast/connected devices/about - ⏲️ Set screen timeout - 🔔 Switch volume modes (normal, vibrate, priority only, alarms only, total silence) - 💡 Adjust brightness - 🌙 Adaptive brightness toggle - 🌑 Grayscale - 📸 Take screenshot - 🔄 Force rotation (0°, 90°, 180°, 270°) - 🔒 Lock screen - 🖥️ Split screen - 📳 Set vibration on calls - ⚡ Open power menu - 🔋 Show battery level - 🔢 Counter - 🐞 Enable/disable USB debugging - 🕹️ Enable/Disable demo mode - 🛠️ Open developer options - 🌙 Enable/Disable keep screen on - 🏃 Set animator duration scale - 🚫 Disable all animations - 🏁 Always finish activities **Important:** Google Play Protect may warn that QuickTiles is a "harmful app." This is a false positive. You can check the full source code in this repository — there is no malicious activity. If you disable Play Protect, Android may still periodically show warnings. This seems to be because Android stores previously detected warnings and repeats them, even after Play Protect is turned off. Acknowledgments: Icons - Old App icon by [Freepik](https://www.flaticon.com/authors/freepik) from [Flaticon](https://www.flaticon.com/) - New App Icon generated with DALL-E 3 ([OpenAI](https://openai.com/dall-e-3/)) - Toggle-split-screen icon by [Smashicons](https://www.flaticon.com/authors/smashicons) from [Flaticon](https://www.flaticon.com/) Open Source Projects - [Dev-Tiles](https://github.com/mustafa01ali/Dev-Tiles) by Mustafa Ali ([Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0.txt)) - [Dev-QuickSettings](https://github.com/adriangl/Dev-QuickSettings) by Adrián García ([Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0.txt)) - [Adaptive Brightness Tile](https://github.com/rascarlo/AdaptiveBrightnessTile) by rascarlo ([GNU GPLv3](https://www.gnu.org/licenses/gpl-3.0.txt)) - [PowerButtonTile](https://github.com/rascarlo/PowerButtonTile) by rascarlo ([GNU GPLv3](https://www.gnu.org/licenses/gpl-3.0.txt)) - [Greyscale](https://github.com/fei-ke/Greyscale) by fei-ke ([Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0.txt))