Productivity

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))

Go to the home screen and lock the device from the notification area or a floating button. You can also mute your device when quickly quitting. You can use this app as a simple screen locker too, without going to home screen.

Quillpad is a fork of an original app called Quillnote. Quillpad is fully free and open-source. It will never show you ads, ask you for unnecessary permissions or upload your notes anywhere without you knowing. Take beautiful markdown notes whenever you feel inspired, place them in notebooks and tag them accordingly. Stay organized by making task lists, set reminders and keep everything in one place by attaching related files. With Quillpad, you can: - Take notes with Markdown support - Make task lists - Pin your favorite notes to the top - Hide notes you do not want others to see - Set reminders for events you do not want to miss - Add voice recordings and other file attachments - Group related notes in notebooks - Add tags to notes - Archive notes you want out of your way - Search through notes - Sync with Nextcloud (requires the Nextcloud Notes app installed on the Nextcloud server used for syncing) - Backup your notes to a zip file which you can restore at a later time - Toggle between Light and Dark mode - Choose between multiple color schemes

NOTE: App repo is archived by dev. It is read-only for all users and it is no longer actively maintained. Features: * Overview: statistics about when stopped smoking, days not smoked and saved cigarettes, money and time * Health: progress of benefits when you quit smoking (breathing, cancer, …) * Diary: here you can write whatever you want. Can be backed up on sdcard.

Track your recovery with science-backed milestones Quitter helps you quit smoking, vaping, alcohol, drugs, adult content, social media, and more—with research-backed health milestones that show exactly what's happening in your body as you recover. Features: - 13 pre-built addiction trackers with cited medical milestones - Custom tracker for any addiction - Daily journaling to process your journey - Milestone notifications to celebrate progress - Completely private—no account required - 100% free and open source Every milestone is backed by medical research from sources like the NHS, CDC, and peer-reviewed journals. See real improvements at 1 day, 3 days, 1 week, 1 month, and beyond. Your data never leaves your device. No ads, no tracking, no subscriptions. Found a bug or have a feature request? Visit https://github.com/brandonp2412/Quitter/issues

📚 QuizFlow - Your Ultimate Learning Companion! 🧠Master vocabulary effortlessly with QuizFlow:- 🆓 QuizFlow is open source, ad-free, and completely free for a seamless learning experience.- 📝 Create and organize custom word lists with ease.- 📊 Track your progress with detailed stats and reports.- 🎮 Interactive flashcards and quizzes for effective learning.- 🔊 Listen to words with TTS (Text-to-Speech) to enhance pronunciation and understanding.- 🎨 Beautiful and stylish Material You design.- 🌐 Fully offline - no internet required!- 🔄 Import and export vocabulary lists effortlessly to share and back up your learning.Download QuizFlow today and improve your learning skills! 🌟

With Qur’an Lite you can read the Qur’an on your Android smartphone or tablet. App size is kept as small as possible without sacrificing functionality, content is fetched by the app after install.The app offers a Light and Dark theme and prefetches all the contents. More features are planned and will become available with new versions, like searching for a Surah or bookmark your last reading page.

A compression program, archiver, backup tool, extractor and basic file manager.

RCX helps you to mange your files, everywhere you go, on your local device or on most cloud providers. File Management You can list, view, download, upload, move, rename, delete files and folders Streaming Stream media files, serve files and directories over FTP, HTTP, WebDAV or DLNA Material Design Supports dark theme, custom primary and accent colors Access almost everything Supports Storage Access Framework (SAF) for SD card and USB device access, regular storage devices and of course any cloud compatible with rclone. Runs on almost everything All architectures (runs on ARM, ARM64, x86 and x64 devices, Android 7+ / 5+)

RF Analyzer turns your Android device into a real-time spectrum analyzer for Software Defined Radio (SDR). Visualize and listen to radio signals around you - from amateur radio to broadcast signals and beyond. Whether you're a curious beginner or a seasoned ham, RF Analyzer offers a hands-on, interactive way to explore radio signals. FEATURES - Works with HackRF, RTL-SDR, Airspy, Airspy HF, HydraSDR or pre-recorded IQ files - View live spectrum (FFT) and waterfall plots - Demodulate AM, FM, SSB, and CW signals - Record raw IQ samples for offline analysis - A responsive and modern Material Design interface - Scroll, zoom, and tune through the bands - Built-in context-aware help and a full offline in-app manual - Bookmarks for Stations and Bands - Import from SDR# or SDR++ - Automatically synchronize with online lists (EiBi DB, POTA & SOTA Spots) REQUIREMENTS - Android phone or tablet (with USB OTG support) - Supported SDR hardware (HackRF, RTL-SDR, Airspy (HF+) or HydraSDR) Note: The RTL-SDR Blog v4 is fully supported. - USB OTG adapter (USB-A female to USB-C for modern phones) Note: This is not necessary for SDRs with USB-C connector (e.g. the HydraSDR) LEARN MORE Want to go deeper? The full user manual is available online with signal identification tips, ham radio basics, and more: https://demantz.github.io/RFAnalyzer/ Have fun exploring, learning, and listening to radio signals :) SUPPORT This app is open-source so anyone can explore SDR without barriers and let the community benefit from a Google-free, privacy-respecting version. If you enjoy using it, please support the project - your donation helps keeping it alive and accessible to everyone. 73! - Dennis (DM4NTZ), Heidelberg, Germany LICENSE This application is released under the GNU General Public License v2. It is free software and the source code is available on GitHub. LEGAL ISSUES Please note that I am not responsible for any legal issues caused by the usage of this application. Be responsible and comply with your local law!

RHVoice is a free and open source speech synthesizer. Voices are built from recordings of natural speech. They have small footprints, because only statistical models are stored on users' computers. And though the voices lack the naturalness of the synthesizers which generate speech by combining segments of the recordings themselves, they are still very intelligible and resemble the speakers who recorded the source material. Supported languages: Initially, RHVoice could speak only Russian. Now it also supports American English, Brazilian Portuguese, Esperanto, Georgian, Ukrainian, Kyrgyz and Tatar. In theory, it is possible to implement support for other languages, if all the necessary resources can be found or created.

Very handy calculator, in Reverse Polish Notation style. Written in Kotlin. For every day use. Large digits with only the most used operators.

A simple, modern RPN calculator that uses RPN. Reverse Polish Notation is a system where the operators are entered _after_ the operands. For example, rather than 2 + 2, you would enter: 2 2 + The main benefit is a faster, more accurate interface.

RUTEdu is an interactive educational app for high school students, developed at PRZ (Rzeszów University of Technology). Features: * Math lessons: algebra, equations, fractions, percentages, geometry, statistics * Interactive periodic table of all 118 elements * Chemistry quizzes with automatic question generator * Chemical equation balancing with number keypad * Geography quiz with interactive map (click-a-country) * Duel: two-player battle on one phone, works with every lesson * Progress tracking and per-subject question configuration * 29 European languages, light and dark theme No ads, no tracking, no internet required (except map quiz).

RUTMath is an interactive educational app that helps school-aged children learn math. The application offers many different levels of difficulty to adjust to the user's skill level, and provides exercises and games that help with learning basic math operations such as addition, subtraction, multiplication, and division. Additionally, the application allows to learn how to convert units, such as converting meters to centimeters, kilograms to grams, etc. There is also the possibility of learning multiplication tables and divisibility of numbers, which are very important for further mathematical education. Thus, the application is an excellent tool for teachers and parents who want to help children learn math in a fun and effective way.

RaagaDB app is meant to be comprehensive database for Carnatic Raagas. Melakartha and Janya raagas are included. UMID16 (Unique Mela ID 16 Swaras) is a new concept. The ID is automatically created from the Swaras of the Mela Raaga by assigning bit to 16 Swaras. That is, 1 for each Swaras and 0 for absent Swaras. UMID12 is a variant for 12 Swara system used in Hindusthani sysytem.

Ghosting is an established training exercise in racket sports to practice court movement without a ball. Moving to the various corners of the court improves both footwork and general stamina. In the best of worlds, your coach or sparring partner will always be ready to point you to random corners at a pace that pushes you to your limits. Unfortunately, few people have access to a coach at all times, thus have to run the exercise on their own. That means the randomness in the order of corners is missing. Getting Started 1. Configure your ghosting session. 2. Put your mobile device in front of you on the court. 3. Press "GO!" to start your ghosting session.

Graph with precipitation forecast for the next two hours in five minute intervals. For every location in the Netherlands.

Tool to make random files, using SecureRandom. Use random files for KeePass keyfiles, shredding disk storage, or anything else that you want. NO permissions, NO ads, NO trackers, Open Source.

ReDD Focus is an accessibility-focused Android tool designed for individuals with ADHD and related attention conditions. It helps create calmer, more manageable digital experiences by allowing users to reduce visual clutter, minimise overstimulating elements, and focus on what matters.Note: This app was formerly known as GMWay (or GreaseMilkyway). The functionality remains the same, only the name has changed.

Monochrome Launcher primarily intended for eInk and eBook devices. Can work as a system launcher or a normal app. Includes file manager, text file viewer, editor and some system functionality. It is a fork of https://f-droid.org/packages/com.harasoft.relaunch project rebranded to avoid confusion. Tested on and developed for Onyx Boox Max, but many other e-readers are supported as well. Discussion goes on the forum mobileread.

ReTerminal is a sleek, Material 3-inspired terminal emulator designed as a modern alternative to the legacy Jackpal Terminal. Built on Termux's robust TerminalView

Free implementation of Play Services to use ReVanced-patched apps without root.