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5118 apps · feature

RowMate
APK
Discover a simple and intuitive way to track your workouts with your FTMS rowing machine. The app features a user-friendly Material 3 interface designed to make each training session more productive and engaging. Key Features - Free Workout Mode: Access a flexible workout environment where you can view and record real-time data from your rowing machine. - Smart Overlay: Enjoy your workout videos while performance data is displayed in overlay mode, allowing you to stay focused on your workout without distractions. In this mode, you can use your Android device to navigate apps and display any content you want—the data will remain always on top, giving you simultaneous access to rowing data and your chosen content. - Training History: Analyze your past performances with a comprehensive historical section. Each workout session is detailed with total data and average values, along with zoomable graphs that show your progress over time, facilitating performance analysis.
F-Droid
R
Rsync Server
APK
This app makes the shared storage of the device available via the Rsync protocol. Shared storage is what you can see in the "File Manager" app that usually comes with the device. This includes the 'DCIM' camera image folder as well as 'Downloads'. When the "start" button is pressed and the device has Wifi connectivity, the app will open a rsync server on a random port with a random tag ("module" in rsync parlance). It will display all necessary details on how to connect to that server while it is running, e.g. rsync://192.168.123.123:66671/abcdef/ Using a standard rsync client the server can then be interrogated and files moved back and forth, i.e. to and from the phone. The benefit is that the transfers can be driven from the client desktop, the keyboard and mouse interface of which making the process much more convenient. Note: This app has not been widely tested and should therefore be considered alpha quality.
F-DroidGitHub
Rsync for Tasker
APK
Tasker is a very useful and widely used automation app for Android with a plugin architecture that allows other apps (such as this one) to add extra functionality.This app provides the following actions for use within Tasker:Generate Private Key - Generates a private key to use for SSH authenticationGet Public Key - Retrieves a public key from a previously generated private key and returns it in the variable %pubkeyrsync - Run an rsync command to synchronise files to or from the devicedbclient - Run an SSH command non-interactively (experimental)The packaged native binaries of Dropbear and rsync are my own builds which I keep updated with new releases.Reasons for requested permissions:FOREGROUND_SERVICERun actions for more than a short time when triggered from older versions of Tasker.FOREGROUND_SERVICE_SPECIAL_USE(Android 14+) Run actions for more than a short time when triggered from older versions of Tasker.INTERNETAllow connecting to SSH servers (even if the SSH server is on your local network Android prevents connections without this permission).MANAGE_EXTERNAL_STORAGE(Android 11+) To read or write the files on your device with rsync.WRITE_EXTERNAL_STORAGE(Android 10 and below) To read or write the files on your device with rsync.POST_NOTIFICATIONSShow a notification that a new version is available (if checking for updates is enabled).REQUEST_INSTALL_PACKAGESPrompt to install an update after you have tapped on the update notification and chosen 'Download'.
GitHubIzzyOnDroid
R
Rtl-sdr driver
APK
Allows you to use I/Q packet source in your Android applications. All you need is to launch an intent in the form "iqsrc://rtl_tcp_arguments" where you replace rtl_tcp_arguments with the arguments that you want your application to run rtl_tcp with and the magic will be done behind the scenes. This driver could be used by third party applications to implement Software Defined Radio. It does not require root for Android 3.1 and above.
F-DroidGitHub
Ruam Mij
APK
An app for scanning suspicious apps on devices that can be risks to users in various aspects, such as apps installed from unsafe sources or misuse of Accessibility Service, and so on. Our app prioritizes user privacy, which is why we've designed it to work primarily offline, with no internet connection required. All functions of this app are under the control of the user.
F-DroidGitHub
Rubbish Calc
APK
Simple rubbish mass calculator that covers basic and most common trash.
F-Droid
Rucoy calculator
APK
Calculate various things related to Rucoy Online: * Training calculation : Input your stats and get which mob to train on! * Power training calculation : Know which mob to power-train on, based on your stats and class! * Offline training calculation : Know how much time is needed to level up a stat with offline training! * Damage calculation : Know how much damage you will deal to any mob in the game! * Skull calculation : Get how much gold you need to skull! Works fully offline, has multiple languages, and is completely free! Say goodbye to Rucoy's Gold supporter and its session analytics!
F-DroidGitHub
Rue:barbe -- modal split counter
APK
Simple application to count the passing vehicules in the street. It can be used for bike advocacy campaign (for example, to report number of bikes passing on a given street). Features: * simple no-frills interface * no login required * stores the counting results locally on the device * automatically retrives and stores location (optional) * calculate modal split * free and open source (GPL licensed)
F-Droid
Ruffle
APK
This is a native Android application for Ruffle. It is in a very early stage.
F-DroidGitHub
Rufid
APK
Rufid turns an Android phone into a practical USB boot-media tool. It writes local ISO/IMG files to attached USB mass-storage devices, streams direct image URLs, creates a small FreeDOS drive, verifies written media, inspects boot records, runs read benchmarks, backs up a USB device to an Android document, extracts ZIP files, and recovers used boot media back into a normal FAT32 or exFAT drive. The main workflow is phone-first: select a USB device, inspect it, choose an ISO/IMG, URL, or FreeDOS source, review the plan, write, and verify. Direct URL mode includes quick access to official source pages for Windows, Ubuntu, Fedora, Debian, Linux Mint, Arch Linux, and openSUSE; it does not bundle those operating system images. Destructive USB actions are guarded by an explicit plan screen and confirmation. Rufid shows the selected USB device, size, and available hardware identifiers before write or recovery operations. It is designed for external USB mass-storage devices, not internal Android storage. Rufid has no ad SDK, analytics SDK, billing SDK, Firebase dependency, cloud account system, or remote crash-reporting SDK. Error reports stay local on the device. The F-Droid build path packages the boot payload set from auditable inputs. FreeDOS is assembled from source-built FreeDOS kernel, FreeCOM, SYS, and boot sector artifacts. UEFI:NTFS, wimlib, and 7-Zip-JBinding are staged from pinned upstream source paths, and the 7-Zip-JBinding Android build excludes RAR/unRAR native sources. No payload is extracted from an opaque third-party APK. USB recovery is a metadata quick-wipe plus FAT32 or exFAT format flow. It is useful for returning a boot USB to normal storage use, but it is not secure erase and not a full-disk wipe.
F-DroidGitHub
Rule of Three
APK
Calculator for the rule of three.
F-DroidGitHub
Ruler (Privacy Friendly)
APK
Privacy Friendly Ruler can display a ruler or protractor at the edge of the display. This enables on the fly measurements with the smartphone. It belongs to the Privacy Friendly Apps group developed by the research group SECUSO at Karlsruhe Institute of Technology. More information can be found an secuso.org/pfa/ What makes Privacy Friendly Ruler different from other similar apps? 1. No permissions Privacy Friendly Ruler does not require any permissions. 2. No advertisement Many other free apps in the Google Play Store dazzle annoying advertising and also shortens battery life. Feel free to contact us via: Bluesky - @secusoresearch.bsky.social https://bsky.app/profile/secusoresearch.bsky.social Mastodon - @SECUSO_Research@bawü.social https://xn--baw-joa.social/@SECUSO_Research/ Job opening - https://secuso.aifb.kit.edu/english/Job_Offers.php
F-DroidGitHub
Rumble
APK
Rumble is a completely off-the-grid application and delay-tolerant micro-blogging application that allows a device to connect, chat and share content (text and images) with other people around you. It doesn't require Internet to work and rely instead on Smartphone, Local Area Network (Bluetooth and Wifi) and human mobility to spread information. Using only the social fabric as an infrastructure, it makes Rumble suitable for use case where the Internet is either best to avoid (surveillance/censorship) or simply not available.
F-DroidGitHub
R
Runbox
Web
Secure email hosting from Norway, protected by strong Norwegian privacy laws.
RunnerUp
APK
Track your sport activities with RunnerUp using the GPS in your Android phone: * See detailed stats around your pace, distance and time. * Get stats and progress with built-in highly configurable audio cues. * Run free runs with target pace or target heart rate zone * Easily configure and run effective interval workouts modeled after Garmin * Share your favorite workouts with friends (using email) * Heart rate monitor: Bluetooth SMART (BLE) * Configure and use heart rate zones Upload your activities to a variety of running sites with a single click: * Strava * RunKeeper * RunningAHEAD Explanation to anti-features: * NonFreeNet: Uploading to Strava and other services makes use of non free net services. (The uploading is open similar to uploading a .tcx file, but the services are not open.) * UpstreamNonFree: The Play version (can be installed at the same time as the F-Droid version) has additional features using non free libraries, see below Features removed compared to Play version: * Map view (OsmDroid instead of MapBox, no MapBox API key in free) * WearOS app (requires non-free Play services) * HR ANT+ connectivity (requires closed source lib) * Runalyze and Dropbox upload (Requires API keys. Runalyze test upload possible.) * Download customized apk to device (F-Droid binary is universal for all supported binaries).
F-DroidGitHub
Running Services Monitor
APK
Running Services Monitor helps you monitor running services on your Android device. With a clean and intuitive interface, you can easily view system and user apps and check their status efficiently. Features * Monitor Running Services: View a comprehensive list of all running services on your device * Categorized View: Easily switch between All, User, and System apps * Search Functionality: Quickly find specific apps with the built-in search bar * App Details: Get detailed information about each app, including package name, version, and more * Root & Shizuku Integration: First checks for root permission, then falls back to Shizuku for advanced system interactions (where supported) * Material Design 3: A modern and beautiful UI that adapts to your device's theme * Dark/Light Mode: Toggle between dark and light themes for comfortable viewing * Localization: Support for English, Bangla, Chinese languages Requirements Essential: * Android 7.0 (API 24) or higher * Root access (preferred) OR Shizuku app installed and running Permissions: * QUERY_ALL_PACKAGES - To list all installed apps * Root permission OR Shizuku permission - The app first checks for root access, then falls back to Shizuku if root is unavailable How It Works This app uses root access or Shizuku to execute privileged ADB commands. Starting from Android 8.0 (API 26), the `ActivityManager.getRunningServices()` API was deprecated and restricted. Third-party apps can no longer query all running services on the device for privacy and security reasons. Root access provides the most seamless experience with direct access to system commands and no additional setup required. Shizuku provides an alternative for non-rooted devices by running a privileged service that can access system APIs, allowing apps to execute ADB commands without root, working on non-rooted devices via Wireless Debugging (Android 11+) or USB ADB. The app checks for root permission first, and if not available, falls back to Shizuku. It executes `dumpsys activity services` to get running service information, parses the output to extract service details (package name, PID, process name, etc.), and categorizes services into System and User categories. Limitations * Due to Android security policies, some service information may be limited * When using Shizuku, the service stops when device reboots * Dumpsys output format may vary across Android versions * This app only displays services; it cannot start/stop them This app is designed for users who want to monitor running services on their device, similar to the "Running Services" feature that was available in Android Developer Options in older Android versions.
F-DroidGitHubIzzyOnDroid
Rush - Lyrics App
APK
Rush is a simple android app to search, view, save and share lyrics for your favourite Songs Features - Search, View and store lyrics - Share lyrics as a customisable card to your friends! - Auto-Search current playing Song (Requires Notification Access permission) - Synced Lyrics
F-DroidGitHubIzzyOnDroid
Rush Hour
APK
Rush Hour is a timetable app for Mumbai's suburban railway network. Look up train schedules between any two stations on the Western, Central, and Harbour lines. Features: - Search trains between any two stations - Filter by fast/slow services - Save favorite routes for quick access - Share your live train position with other commuters - Works offline with a bundled timetable database - Configurable server URL for self-hosted backends - Material You theming
F-Droid
Ruslin
APK
Supported features: ✅ Create, modify and delete folders and notes ✅ Markdown editor with toolbar ✅ Full-text search using jieba-rs (Chinese and English supported) ✅ Sync notes using a self-hosted Joplin server ✅ Manual and automatic synchronization 🚧 Possible compatibility with Joplin's sync format (End-to-end encryption is not supported) It is currently in the beta stage, so take care to make backups.
F-DroidGitHub
Russian for AnySoftKeyboard
APK
This is a Cyrillic expansion pack for AnySoftKeyboard. Install AnySoftKeyboard first, and then select the desired layout from AnySoftKeyboard Settings->Keyboards menu. This pack contains Cyrillic and phonetic Russian keyboard layouts, physical keyboard mapping and dictionary. Search for AnySoftKeyboard on Google Play. . . https://play.google.com/store/apps/details?id=com.menny.android.anysoftkeyboard
F-DroidGitHub
RustDesk
APK
An open-source remote desktop application, the open source TeamViewer alternative. Source code: https://github.com/rustdesk/rustdesk Doc: https://rustdesk.com/docs/en/manual/mobile/ In order for a remote device to control your Android device via mouse or touch, you need to allow RustDesk to use the "Accessibility" service, RustDesk uses AccessibilityService API to implement Android remote control. In addition to remote control, you can also transfer files between Android devices and PCs easily with RustDesk. You have full control of your data, with no concerns about security. You can use our rendezvous/relay server, or self-hosting, or write your own rendezvous/relay server. Self-hosting server is free and open source: https://github.com/rustdesk/rustdesk-server Please download and install desktop version from: https://rustdesk.com, then you can access and control your desktop from your mobile, or control your mobile from desktop.
F-DroidGitHub
Rusyn for AnySoftKeyboard
APK
Rusyn Language pack This is an expansion language pack for AnySoftKeyboard. Install AnySoftKeyboard first, and then select the Spanish keyboard from AnySoftKeyboard Settings -> Languages -> Keyboards menu.
F-DroidGitHub
RvClock
APK
Clock in the style of the Cowon D3 clock, with customizable colours for the hours and minutes. The font used is PT Sans Narrow which is licensed under the SIL.
F-Droid
RvKernel Manager
APK
Unlock the true potential of your Android device with RvKernel Manager, a powerful and user-friendly open-source tool for managing your kernel settings. This app provides comprehensive control over your device's kernel parameters.Fine-tune your device for peak performance, maximum battery life, or a perfect balance between the two.Features:Device Information DashboardMonitor critical device information including CPU model, GPU model, RAM, kernel version, Android version, and more.Real-time monitoring: Voltage, temperature, charging level, and deep sleep timeFast charging control: Enable/disable for supported devicesBypass charging mode: Supported on compatible kernelsBattery health tracking: Monitor current health and capacityThermal configuration: Manage thermal profiles for optimal performanceMulti-cluster CPU support: Little, Big, and Prime core clustersGovernor selection: Choose optimal CPU & GPU scheduling policiesFrequency scaling: Set custom min/max frequenciesGPU tuning: Power level control, Adreno boost, and throttling settingsKernel Parameter TuningFine-tune kernel settings for optimal performance:Memory management: Swappiness, dirty ratio, and ZRAM configurationZRAM optimization: Size allocation and compression algorithm selectionNetwork tuning: TCP congestion control algorithm selectionScheduling: Kernel task scheduler tuning with BORE scheduler supportKernel profiles: Pre-configured profiles (Performance, Balance, Powersave)CPU tuning: Uclamp settings for fine-grained CPU performance controlAnd many more advanced parameters!Material 3 Expressive DesignModern interface: Clean, intuitive Material 3 designDynamic theming: Adapts to your system colorsDark/Light modes: Full theme supportSystem IntegrationWireGuard support: Monitor WireGuard kernel module statusReal-time monitoring: CPU usage, uptime, and system metricsRequirementsROOT ACCESS REQUIRED: This app needs root permissions to modify kernel parametersAndroid 12+: Minimum supported Android versionSnapdragon devices: Currently only compatible with Qualcomm Snapdragon SoCs
GitHubIzzyOnDroid
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