Open Source
5168 apps · feature
RecorderX
APK
RecorderX is a high-performance, privacy-focused screen recorder for Android. Key Features: - Record up to 4K (UHD) and 2K (QHD) for crystal clear video. - High-speed recording at 60fps, 90fps, and 120fps. - Custom bitrates up to 40 Mbps for professional quality. - Modern AMOLED Black and Lavender Purple theme with precision slider controls. - Automatic file naming with custom templates. - Self-healing audio system that recovers if the system blocks capture. - Post-recording notifications with live video thumbnails. - Works entirely offline with no internet access or ads. - Open Source and built for performance.
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Recording Studio Lite
APK
Audio recorder * Supports various formats and codecs * Recordings playback, renaming and deleting * Auto-pausing recordings on phone call, low battery or storage
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Recording WebCam
APK
This is a Recording Webcam - Camera App for android TV and Android Phone to capture or record video and upload the file to a server.Features:Capture: Take photos with an existing camera, change the camera used, turn the flash on and off, and change photo qualityRecording: Record video with an existing camera, change the camera used, turn the flash on and off, and change the quality of the recorded videoUpload: Send photos or videos to the server via url
GitHubIzzyOnDroid
Recurring Expense Tracker
APK
A Material You recurring expense tracker, allowing you to keep track of your monthly spending. As the name suggests, this app focuses on recurring expenses like rent, insurance, subscriptions, and other regular payments. Built with Kotlin Multiplatform and Material You design principles, it provides a simple yet powerful way to track and visualize your recurring financial commitments. The app is designed to be intuitive and straightforward, helping you understand exactly where your money goes each month. My idea is to add new features iteratively, and I'm happy for any contribution. Feel free to make feature requests or report bugs if you find any.
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Recursive Runner
APK
Sure, except there is a running and jumping obstacle to avoid: You! (and You (and You (and You (and...)))) Experience an all new kind of running game! Used to play until being hit by an obstacle? You'll play for 90 seconds each game. Used to control 1 running hero? We'll give you 10 of them. The trick? You control them one at a time, and when you're done with one, he will do the same run over and over and continue to score points for you. The challenge is to score with your current hero while avoiding your previous ones - if you hit one of them he will disappear forever.
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Red Dot
APK
This parametric animation, under the current technology, is 49 years long, Starting 1970 January 1, it is not random, is synchronized over all devices and ideally never repeat itself. The Red Dot is just a symbol, a representation of something else. Take a look and find your our own meaning for it.
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Red LinuxClick
APK
Red LinuxClick is a Latin American social network for Linux and free software lovers.In Red LinuxClick, each user can create their own Blog, Live Broadcast, and Chat. We are not only a Social Network, but we also have a forum. We have a large community of active users who share their knowledge on the web every day.When Was The Social Network Launched?The network was created on 01/30/2022, launched as a beta. And officially launched on 02/01/2022.How Do They Maintain The Social Network?We support ourselves thanks to the memberships you buy, and the profits obtained from advertising. All the money collected is used to pay for services that make the social network active.I’m not going to join. There are many social networks!Feel free to do what you want. We know that there are many social networks, but the reason for this network was to have a Latin American community about Technology, Gnu, Linux, BSD, Unix, ETC.
GitHubIzzyOnDroid
Red Moon
APK
Blue light may suppress the production of melatonin, the sleep hormone. Red Moon filters out blue light and dims your screen below the normal minimum, so you can use your phone comfortably at night. Features: - Schedule Red Moon to run from sunset to sunrise, or at custom times. - Use the default color profiles, or set custom color, intensity, and dim levels. - Automatically pause in apps secured against overlays, or those you choose. - Quickly start, stop, and switch profiles via notification, tile (Android 7.0+), or widget. Permissions: - Modify system settings: To automatically lower the screen brightness when the filter is on - Approximate location (network-based): To determine the sunrise and sunset at your location. This will only be used when you configure Red Moon to automatically start at night. - Draw over other apps: To change the color and brightness of the screen in all apps - Run at startup: To restore the previous filter state at startup
F-DroidGitHub
Red Screen
APK
Shows a bright red screen for use as an ad-hoc emergency light or as a penalty card. If triggered from outside, it turns on the screen and raises atop of the lock screen. The colour can be overridden with an intent parameter (see README on Github).
F-DroidGitHub
RedReader
APK
An unofficial, open-source client for Reddit. * Free and open-source Software - no ads/tracking * Lightweight and fast * Swipe posts left and right to perform customizable actions, such as upvote/downvote, or save/hide * Advanced cache management - automatically stores past versions of posts and comments * Support for multiple accounts * Two-column tablet mode (can be used on your phone, if it’s big enough) * Image and comment precaching (optional: always, never, or Wi-Fi only) * Built-in image viewer, and GIF/video player * Multiple themes, including night mode, and ultra black for AMOLED displays * Support for Android 4.0+
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RedTrigger
APK
RedTrigger enables shoulder triggers (SAR capacitive sensors) on Nubia Red Magic phones system-wide, without needing Game Space. Nubia's game framework controls the shoulder trigger hardware and only activates them inside Game Space. The system also resets trigger settings every time you switch apps. RedTrigger fixes both issues. How it works: - Activates SAR sensors without launching full Game Space - Runs a watchdog service that detects when Nubia's SystemMgr resets trigger settings on app switch - Re-applies settings instantly, keeping triggers active across all apps Key remapping (via Shizuku): - Reads raw input events from /dev/input using a Shizuku UserService - Optionally injects remapped key events (L1/R1) so apps like KeyMapper can capture them - Uses a virtual uinput device so remapped events appear as real hardware input Requirements: - Nubia Red Magic phone (tested on Red Magic 11 Pro) - Shizuku installed and running (wireless ADB or root) The app automatically grants itself WRITE_SECURE_SETTINGS via Shizuku, so no manual ADB commands are needed. Enable "Auto-enable on boot" to survive reboots.
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Reddinator
APK
A widget for the popular Reddit website. Features: * Display any Reddit subreddit in the widget. * Choose from popular subreddits or search for your favourites. * Keep you favourite subreddits on your "My Subreddits" list. * Select the subreddit sorting type (hot, popular, etc). * Reload the feed. * Load more feed items. * Have multiple widgets displaying a different subreddit and sorting type. * Display thumbnails preference for each widget, choose position of thumbnail. * Hide post infomation * Choose from three item click actions. You can open the combined "Reddinator view", open the item's content page or open the item's Reddit page. * Reddinator view combines the items content and the reddit comments page into a tabbed layout, read the article and participate in Reddits great community discussion at the same time.
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Reddit
APK
revanced and revanced-like versions of Reddit
GitHub
Redomi
APK
Unofficial song.link client Features: - Open supported links from different music services in your favourite streaming app - Convert links and share songs with others on their preferred platforms - Customize Sharesheet in different ways: - Icon shapes - Choose which apps to display - Decide between a horizontal or vertical list, and its grid size - Material You - Light/Dark Theme
F-DroidGitHubIzzyOnDroid
Reef
APK
Reef: Stay Focused and Boost ProductivityReef is your ultimate productivity companion, designed to help you stay focused, manage screentime, and minimize distractions. Whether you’re working, studying, or simply want to disconnect from unnecessary distractions, Reef empowers you to take control of your time and focus on what matters.Note: We use Accessibility Service to know when you are using unproductive apps and close them automatically. No information leaves your device, nor is it distributed to any third parties.Key Features:Focus Mode: Enter focus mode to pause distracting apps and stay productive. Once your focus session is over, all apps resume automatically, letting you get back to them without interruption.Routine Scheduling: Set up daily or weekly routines to automatically activate focus mode during specific times. Whether it’s work hours, study sessions, or personal time, Reef adapts to your schedule.App Whitelist: Customize your focus sessions by whitelisting essential apps that you still need access to, even during focus mode. Keep important tools available while pausing distractions.App Usage Limits: Set daily limits for apps and receive reminders when you’re nearing your limit. Manage how much time you spend on social media, games, or any other apps that distract you.Pause & Resume: With a single tap, pause apps during focus mode and resume them effortlessly when you’re done. This simple control helps you manage distractions with ease.Digital Well-being: Reef helps improve your digital well-being by promoting healthy app usage habits. Cut down on screen time and reclaim your focus to achieve your goals.Personalized Experience: Tailor your focus settings to your lifestyle. Whether you want to focus for a few minutes or a few hours, Reef adapts to your needs.Why Choose Reef?In a world filled with distractions, Reef helps you regain control over your time and attention. Whether you’re studying, working, or just need a break from constant notifications, Reef is the perfect tool to boost your productivity and maintain a healthy balance between your digital life and your real-world responsibilities.Take control of your time, eliminate distractions, and achieve more with Reef!
GitHubIzzyOnDroid
Regex Crossword
APK
Solve crosswords by matching regex rules! These are grouped by difficulty and get increasingly harder to solve. Will you be able to solve all of them? - Get to be a regex expert - Crosswords re-invented - Free and without any ads This app is open source: https://gitlab.com/carstenhag/regex-crossword-kotlin Got some improvement ideas? Either submit an issue on the Gitlab project or send me a mail: regex-crossword@chagemann.de
F-Droid
RegisCat
APK
RegisCat Registration of surveillance cameras in Chile. A radical mapping application for Android About This map is built based on OpenStreetMap. This application allows tracking of surveillance cameras in Chile (for now only Chile). Secure and privacy protected Does not track Not GoogleMap Android Permissions RegisCat does not need permissions except Internet Connection, Location (optional) and Storage (optional). * This application is in its BETA phase, all functions may not be 100% operational. *
F-Droid
Rehearsal Assistant
APK
A voice / sound recording utility with two modes of operation: Session Mode: organizes recordings into sessions, and time-stamps relative to the beginning of the session, making it useful for recording your thoughts and observations during an event. If you are a choreographer or director watching a rehearsal of your work, this can help you make note of the feedback you want to share with the cast. Simple Mode: easy recording and playback of sound files. If you are a musician or writer, it can help you record and remember your spontaneous moments of inspiration. Also works great for shopping lists and other kinds of reminders.
F-Droid
Reloado Auth - 2FA Authenticator
APK
Reloado Auth is the only two-factor authenticator you will ever need. Built for privacy. Designed for trust. Reloado Auth protects your accounts with end-to-end encrypted cloud backup: Meaning only you can ever access your codes. Not even we can. Zero compromise. END-TO-END ENCRYPTED BACKUP, SYNC & WEB ACCESS Your 2FA tokens are encrypted in your vault and can be synced seamlessly across all your devices. Access your codes from any browser with full end-to-end encryption intact. Whether you're on your phone, tablet, or a desktop, Reloado Auth has you covered. Your keys. Your data. Always. WORKS OFFLINE — NO ACCOUNT REQUIRED Generate TOTP and HOTP codes entirely offline. No internet connection needed, no account required. Use Reloado Auth locally for as long as you want (cloud sync is always optional). BIOMETRIC UNLOCK Your vault stays locked behind biometric authentication. Only your fingerprint or face can open it. Fast, seamless, and secure. INSTANT CODE CAPTURE Scan a QR code or enter accounts manually in seconds. Tap to copy your code instantly: No more squinting at digits and typing them out. UNIVERSAL COMPATIBILITY & MULTILINGUAL SUPPORT Reloado Auth supports both TOTP and HOTP standards and works with every major service — Google, GitHub, Microsoft, and any RFC 6238 or RFC 4226 compatible platform. Available on Android, iOS, and Web. Fully localized in English and German. ✨ FEATURES AT A GLANCE - End-to-end encrypted (E2EE) cloud backup - Sync across all your devices - Web access, Android and iOS version - Works 100% offline — no account needed - Biometric unlock (fingerprint & face) - QR code scanner & manual entry - Tap to copy codes instantly - Available in English and German - Free and open source SUPPORT Need help or have a feature request? We'd love to hear from you. Visit us on GitHub or reach out via our support channels.
F-DroidGitHub
Remail
APK
Remail is a modern, open-source mobile client specifically designed for the Resend.com email platform. Inspired by the familiar Gmail interface, it brings an intuitive email experience to your fingertips. Key Features: Gmail-inspired Interface: Navigate your emails with ease using a clean, familiar, and responsive design. Complete Email Management: Effortlessly view your Resend.com email history. Powerful Composer: Compose emails with support for attachments and multiple recipient fields. Secure & Private: Your Resend API key is stored locally and securely. How to Use: Get your API Key: Log in to your Resend.com dashboard and generate a new API key with full permissions. Authentication: Open Remail and enter your API key and default address to securely sync your account. Start Sending: Use the compose button to send your first email through Resend's infrastructure. Manage: Use the inbox and composer like a streamlined Gmail-style client for Resend.
F-DroidGitHub
Remember My Sort
APK
Android's file picker (DocumentsUI) resets sort order every time you navigate into a folder. This Xposed module persists your sort preference across directories and sessions. Features: Tap a sort option to set the global default Long-press a sort option to save per-folder preference Per-folder overrides take priority over global default Requires official LSPosed framework, Android 11+ and root access. Supported packages: com.google.android.documentsui (Google Pixel) com.android.documentsui (AOSP)
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Remember: Notes & Reminders
APK
Remember is built around one simple idea: if you dismiss a reminder without finishing the task, it comes back. No important item disappears just because you accidentally swiped away a notification. Mark the note done, and the reminder is gone for good. ━━ 📌 REMINDERS THAT STICK ━━ Keep reminders visible until they are actually done. Choose from normal reminders, high-importance reminders with heads-up alerts, or a quiet summary notification that keeps overdue and upcoming items pinned in your notification shade. ━━ 🔔 NOTIFICATION ACTIONS ━━ Add useful one-tap actions directly to reminder notifications so you can act without opening the app: * Call, Message, or Email * Get Directions * Open a link, app, or shortcut * Copy text or Share content ━━ 💤 NATURAL SNOOZE PRESETS ━━ Snooze with human-friendly presets - soon, later today, this evening, and tomorrow morning - without hunting for the right time. ━━ 📅 RECURRING SCHEDULES ━━ Create daily, weekly, monthly, or yearly reminders. Remember also supports richer calendar-style patterns like "the last Friday of every month", with optional end dates or occurrence counts. ━━ 📝 MARKDOWN NOTES AND CHECKLISTS ━━ Write rich markdown notes with headings, bold, italics, underline, links, and code blocks. Build nested checklists for groceries, packing lists, project steps, or anything else that benefits from structure. ━━ 🔍 ORGANIZE AND FIND THINGS ━━ Use tags, stars, archive, trash, full-text search, filters, sorting, and bulk actions to keep your notes manageable. ━━ 📱 WIDGETS AND QUICK CAPTURE ━━ Home screen widgets for upcoming reminders, starred notes, and quick capture. A persistent notification can keep note creation one tap away at all times. ━━ ☁️ IMPORT FROM GOOGLE TASKS ━━ Move into Remember from Google Tasks using a connected account or a Google Takeout file. Import is read-only; Remember does not modify or delete your Google Tasks data. ━━ 💾 BACKUP AND RESTORE ━━ Export your notes and settings to a backup, optionally including attached media. Restore when moving to a new device, or import a backup to merge notes into your current collection. ━━ 🎨 MAKE IT YOURS ━━ Choose Material You wallpaper colors, hand-tuned color presets, your own custom colors, palette styles, gradient backgrounds, black OLED mode, cover images, and more. Theming is deep - the app can look and feel very different from any other notes app on your phone. ━━ 🔒 PRIVATE BY DEFAULT ━━ Your notes are stored on your device. There are no Remember servers, no account is required, and no data leaves your phone unless you export a backup yourself.
F-DroidGitHub
Remind Me
APK
A minimalistic app for quick reminders.Features:Set reminders within the next 24 hoursClear list of all pending remindersSwipe-to-delete individual remindersDelete all with confirmationMinimalistic designFully open sourceNo trackers, no analyticsPerfect for short memory aids in everyday life.
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Remindly
APK
Add reminders to the notification list.
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