No Tracking
5170 apps · feature
Orbot
APK
Tor on Android
GitHub
Orbot: Proxy with Tor
APK
Orbot is a free VPN and proxy app that empowers other apps to use the internet more securely. Orbot uses Tor to encrypt your Internet traffic and then hides it by bouncing through a series of computers around the world. Tor is free software and an open network that helps you defend against a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security known as traffic analysis. Orbot is the only app that creates a truly private internet connection. As the New York Times writes, “when a communication arrives from Tor, you can never know where or whom it’s from.” Tor won the 2012 Electronic Frontier Foundation (EFF) Pioneer Award. ★ ACCEPT NO SUBSTITUTES: Orbot is the safest way to use the Internet on Android. Period. Orbot bounces your encrypted traffic several times through computers around the world, instead of connecting you directly like other VPNs and proxies. This process takes a little longer, but the strongest privacy and identity protection available is worth the wait. ★ PRIVACY FOR APPS: Any app can be routed over Tor via the Orbot VPN feature ★ PRIVACY FOR EVERYONE: Orbot prevents someone watching your connection from knowing what apps you are using or websites you visit. All anyone monitoring your network traffic can see is that you're using Tor. ***We Love Feedback*** ★ LEARN MORE: Learn more about Orbot and get involved at https://orbot.app ★ ABOUT US: Guardian Project is a group of developers that make secure mobile apps and open-source code for a better tomorrow. ★ OPEN-SOURCE: Orbot is free software. Take a look at our source code, or join the community to make it better: https://github.com/guardianproject/orbot ★ MESSAGE US: Are we missing your favorite feature? Found an annoying bug? We’d love to hear from you! Send us an email: support@guardianproject.info ***Disclaimer*** Guardian Project makes apps that are designed to protect your security and anonymity. The protocols that we use are widely regarded as the state of the art in security technology. While we are constantly upgrading our software to combat the latest threats and eliminate bugs, no technology is 100% foolproof. For maximum security and anonymity users must utilize best practices to keep themselves safe. You can find a good introductory guide to these topics at https://securityinabox.org
GitHubguardian
Orfox
APK
Orfox is built from the same source code as Tor Browser (which is built upon Firefox), but with a few minor modifications to the privacy enhancing features to make them compatible with Firefox for Android and the Android operating system. Orfox REQUIRES Orbot app for Android to connect to the Tor network. In as many ways as possible, we adhere to the design goals of Tor Browser (https://www.torproject.org/projects/torbrowser/design/), by supporting as much of their actual code as possible, and extending their work into the additional Android components of Firefox for Android. ** Also, includes NoScript and HTTPSEverywhere add-ons built in! The Tor software protects you by bouncing your communications around a distributed network of relays run by volunteers all around the world: it prevents somebody watching your Internet connection from learning what sites you visit, it prevents the sites you visit from learning your physical location, and it lets you access sites which are blocked. Learn more at: https://guardianproject.info/apps/orfox * * How is Orfox different than Tor Browser for desktop? * The Orfox code repository is at https://github.com/guardianproject/tor-browser and the Tor Browser repository is here:https://gitweb.torproject.org/tor-browser.git/. The Orfox repository is a fork of the Tor Browser repository with the necessary modification and Android-specific code as patches on top of the Tor Browser work. We will keep our repository in sync with updates and release of Tor Browser. * Orfox is built from the Tor Browser repo based on ESR38 (https://dev.guardianproject.info/issues/5146https://dev.guardianproject.info/news/221) and has only two modified patches that were not relevant or necessary for Android * Orfox does not currently include the mobile versions of the Tor Browser * Button, but this we will be added shortly, now that we have discovered how to properly support automatic installation of extensions on Android (https://dev.guardianproject.info/issues/5360) * Orfox currently allows for users to bookmark sites, and may have additional data written to disk beyond what the core gecko browser component does. We are still auditing all disk write code, and determining how to appropriately disable or harden it. (https://dev.guardianproject.info/issues/5437) * * How is Orfox different than Orweb? Orweb is our current default browser for Orbot/Tor mobile users (https://guardianproject.info/apps/orweb) that has been downloaded over 2 million times. It is VERY VERY SIMPLE, as it only has one tab, no bookmark capability, and an extremely minimal user experience. Orweb is built upon the bundled WebView (Webkit) browser component inside of the Android operating system. This has proven to be problematic because we cannot control the version of that component, and cannot upgrade it directly when bugs are found. In addition, Google has made it very difficult to effectively control the network proxy settings of all aspects of this component, making it difficult to guarantee that traffic will not leak on all devices and OS versions. Orweb also only provides a very limited amount of capability of Tor Browser, primarily related to reducing browser fingerprinting, minimizing disk writes, and cookie and history management. It trys to mimic some of the settings of Tor Browser, but doesn’t actually use any of the actual code written for Tor Browser security hardening.
GitHubguardian
OrgNote
APK
Explore a comprehensive note-taking application that seamlessly integrates with the widely acclaimed Emacs package - Org Roam, while implementing the powerful Zettelkasten approach. Effortlessly capture, organize, and explore your thoughts, research, and ideas using the Zettelkasten-inspired, dynamic networked thinking within this user-friendly app.
GitHubIzzyOnDroid
Organic Maps・Offline Map & GPS
APK
Organic Maps is a fast, detailed offline map and GPS navigation app for travel, hiking, trekking, and cycling adventures. Plan, import, and record routes, and enjoy smooth guidance without draining your battery or using an internet connection. Explore places and navigate safely during your outdoor adventures and travels around the world. The app offers unlimited map downloads and biweekly updates. OpenStreetMap-based, volunteer-made, privacy-first, 100% offline, and 100% free. OFFLINE: The app works 100% offline — including search and navigation. You can explore the map and navigate without an internet connection, saving on mobile data and roaming fees. And with no background data transfers, your battery lasts much longer. FAST: Zooming, search, and route calculations work noticeably fast. DETAILED & UPDATED: The maps are rich in detail and refreshed twice a month to reflect real-world conditions. Unlike many well-known competitors, they include building labels, benches, hiking paths, and other helpful information. OPENSTREETMAP-BASED: OpenStreetMap is a wiki-style world map built and maintained by millions of volunteers — locals who know their areas best. This community effort results in highly detailed maps, often more accurate than commercial ones in less-mapped regions. Organic Maps updates its data from OpenStreetMap every two weeks, keeping your maps fresh and reliable. And if you notice something missing, you can add it to OpenStreetMap and help improve the map for everyone. PRIVACY-FIRST: We don’t collect any data or identifiers. This means there’s no risk of data leaks and no distractions like ads or noisy notifications — just a clean, private map experience. IMPORTANT FEATURES EXPLORE PLACES: Search by address, name, or category, discover millions of POIs, and view detailed information such as opening hours, Wikipedia articles, wheelchair accessibility, and other helpful details. GPS NAVIGATION: Enjoy voice-guided, turn-by-turn directions. Create walking, hiking, cycling, or driving routes — including routes between cities, countries, and multiple waypoints. Find the best routes for your metro journeys and commutes. Android Auto is supported. HIKING & CYCLING TRAILS FROM AROUND THE WORLD: Enable special map layers to discover popular hiking and cycling routes worldwide, all sourced from OpenStreetMap. Switch between layers to see colored bike and MTB routes, as well as official hiking paths. PUBLIC TRANSPORT: See public transport route numbers at stops. Live transport schedules and routing are currently in development. MAP STYLES: Choose map layers that fit your activity — Outdoors, Contour Lines, Hiking, Cycling, or Metro/Subway. TRACK RECORDER: Record, import, export, and share your routes and favorite places. Supports KML, KMZ, GPX, and GeoJSON formats. WIKIPEDIA ARTICLES: Explore Wikipedia articles for places you discover on the map. Type “?wiki” in the search to find all places with Wikipedia articles. MAP EDITOR: Contribute to OpenStreetMap by adding missing places or editing the map directly from Organic Maps. DARK MODE: Switch to a dark theme for comfortable viewing at night. Try the app — it’s 100% free, ad-free, fast, and fully offline. Experience reliable GPS navigation for hiking, biking, trekking, and travel anywhere in the world! Enjoy a fast, reliable, and private map experience, and share it with others! Organic Maps is an indie, community-driven, open-source project with hundreds of contributors who help develop new features, fix issues, translate, and move the project forward. Join the community on Telegram: @OrganicMapsApp Or learn other ways to support the project: https://organicmaps.app/contribute/ Your honest feedback and reviews in the store motivate us! We love hearing from you there. Have questions? Please visit the organicmaps.app website for additional details and FAQ
F-DroidGitHub
Orgro
APK
Orgro is an Org Mode file editor and viewer that brings essential Org features to mobile: - TODO and checkbox toggling, with progress cookies - Quick actions to start a new Org doc or go straight to your most important one - Notifications for Org Agenda items - Narrow, search, and filter your document just like in Emacs - Org Crypt section symmetric decryption/encryption - Org Cite bibliography support - Syntax highlighting, beautiful tables, LaTeX rendering - Expand or collapse sections, blocks, and drawers - Reflowed text for easy viewing on mobile Note: INTERNET permission is required for displaying remote images and dynamically loading fonts from online sources (Google Fonts, AWS S3). Notification- and execution-related permissions required for Org Agenda notifications and background updating of agenda.
F-DroidGitHub
Orgzly Revived
APK
Orgzly Revived is an outliner for taking notes and managing to-do lists. You can keep notebooks stored in plain-text and have them synchronized with a directory on your mobile device, SD card or over WebDAV. Notebooks are saved in Org mode's file format. “Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.” See orgmode.org for more information. Features: * Create, edit and delete notes and tasks * Collapse and expand sub-notes * Schedule tasks and set their deadlines * Set priorities and tags for notes * Fling notes left or right to open quick-menus * Search notes by various properties * Create and save searches for quick access * Synchronize notebooks with one or more directories Orgzly Revived is a community fork of the app Orgzly.
F-DroidGitHubIzzyOnDroid
Oriens
APK
Display and Roman Timekeeping (Unequal Hours) calculated by location * Roman Night Watches * Gregorian Calendar * Roman Timekeeping * Sunrise and Sunset
F-DroidGitHub
Orientation Lock
APK
Orientation Lock is a simple open source app to lock the screen orientation, for Android 5.0+.Features:Minimalist and lightweight: less than 100KB in size;Clean design: easy-to-use interface;Open source: no dependencies, no ads, no trackers.Why Orientation Lock?When using an Android tablet, you might find that some applications do not support landscape mode or specific orientations. This was quite troublesome for me. I tried several screen orientation locking apps available on the market, but they were overloaded with features. I simply needed an app to lock the screen orientation, so I decided to create one myself.The principle behind locking the screen orientation is very simple: it involves using a floating window to render a view in a specified orientation. This is just a straightforward application, and I wanted to keep it lightweight. Therefore, I implemented it using native methods without any third-party libraries. Pretty cool, isn’t it?
GitHubIzzyOnDroid
O
Orion
DesktopiOS
WebKit-based browser for macOS and iOS with native ad blocking and zero telemetry.
Orion Viewer - Pdf & Djvu
APK
Orion Viewer is pdf, djvu, xps, cbz and tiff file viewer for Android devices based on mupdf and DjVuLibre libraries. Application features: Outline navigation Bookmarks support Page navigation by screen taps + Tap Zones + Key binding Text selection Single word selection by double tap with translation in external dictionary Custom zoom Custom manual and auto border crop Portrait/landscape orientation Support different navigation patterns inside page (left to right, right to left) External Dictionaries support Built-in file manager with recently opened file view
F-DroidGitHub
OsciPrime
APK
Measure the microphone audio input as well as a USB Oscilloscope on sale from the website.
F-Droid
Oscilloscope
APK
An audio oscilloscope and spectrum. * Timebase 0.1 ms - 0.5 sec * Sync control * Single shot * Storage * Index * Spectrum There are toolbar icons to control single step, sync timebase, storage and scrolling. The spectrum display has a display lock function and shows the current dominant frequency and signal level in the toolbar.
F-DroidGitHub
Oshi Uploader
APK
Oshi Uploader Android Client App features: - Add your own oshi instances or use the publicly available one by default (oshi.ec) - You can enable fingerprint check for SSL certificates - Manage your uploaded files - Keep a history of uploaded files - Share from other apps to create uploads (including text) - Do the upload in background and see the progress in notification - Fully open source open-source repo link: https://codeberg.org/quecomet/oshi/
F-Droid
Osm Go!
APK
Osm Go! is a mobile application that allows you to enrich OpenStreetMap directly in the field. Mapping your direct environment has never been so easy and fast. Keep your eyes open and have the right reflex!Osm Go! has been designed to map the POIs (equipment, shops, etc.) that are around you during your Sunday walks – so you don’t have to be an expert to use it!
GitHubIzzyOnDroid
OsmAnd
APK
OsmAnd is an offline maps and navigation app supported by OpenStreetMap data.
DirectF-DroidGitHub
O
OsmAnd Nightly
APK
Direct
Osram Remote
APK
An android app for controlling Osram RGB lights using infrared. Your phone needs to have an IR emitter use this app. Currently only supports built-in IR emitters.
F-DroidGitHub
Otic
APK
Otic lets you stream your Android device's microphone input to the local network using `ServerSocket` and Foreground Service. Otic isn't a receiver, so you must have a custom receiver to receive the audio from the Otic client. Check the README (https://github.com/sakethpathike/Otic/blob/master/README.md) for more details.
F-DroidGitHub
Otoscope
APK
Otoscope is a clean, ad-free replacement for the proprietary apps shipped with cheap Wi-Fi otoscope cameras. The stock companion apps — "AIR-Look" (Wudaopu / Xylla hardware) and "EarVision" (Shenzhen Jiding / JEGOAT hardware) — bundle a dozen ad and analytics SDKs (AdMob, AppLovin, IronSource, MBridge, Vungle, Pangle, Mintegral, etc.) and a sprinkling of in-app tracking. Otoscope reimplements just the connection and viewer functionality, with nothing else. Features: * Discover the camera over Bluetooth Low Energy. * Join the camera's Wi-Fi access point in a one-process scope, so the rest of your traffic isn't affected. * Live video stream, decoded in-app over the camera's UDP protocol — pure Kotlin, no FFmpeg, no native blobs. * Auto-rotation driven by the camera's on-board accelerometer / gyro. * Horizontal-mirror toggle for self-examination. * Circular mask matching the otoscope lens. Supported hardware families (the right protocol is selected automatically from the BLE advertisement): * Wudaopu / Xylla — Wi-Fi SSID `Enjoy-XXXXXX` or `JesHome-XXXX`, open AP. * Shenzhen Jiding / JEGOAT — Wi-Fi SSID `softish-XXXXXX`, WPA2. Otoscope is GPL-3.0-or-later and contains no third-party trackers, ad SDKs, or proprietary native libraries.
F-DroidGitHub
Otraku
APK
Otraku aims to support most AniList features and it already covers:Tracking media and managing/filtering collectionsBrowsing/Filtering media/characters/staff/studios/users/reviews/recommendationsForumGeneral/User activity feedsComposing messagesCalendar for release schedulesCustomization with different themes and other optionsAnd more!
GitHubIzzyOnDroid
OuterTune
APK
OuterTune is a supercharged fork of InnerTune. This app is both a local media player, and a YouTube Music client. Features: YouTube Music client with song downloading (offline playback), background playback, no ADs, and account synchronization Local audio file playback (MP3, OGG, FLAC, etc.) Uses a custom tag extractor instead of MediaStore's broken metadata extractor! (e.g tags delimited with backslash now show up properly) Play local and Youtube Music songs at the same time New integrated library screen design Multiple queues Synchronized lyrics, and support for word by word/Karaoke lyrics (e.g LRC, TTML) Audio normalization, tempo/pitch adjustment, and various other audio effects Android Auto support Notice: Android 8 (Oreo) and higher is supported. While the app may work on Android 7.x, we do not officially support this version OuterTune is in a "stable beta" phase. While this app can certainly be used as your main music player, be aware there is a possibility of bugs, incomplete features, or any other unexpected behaviour. Please report issues on our GitHub page! Please visit our wiki for more information including FAQs, guides, and manuals: https://github.com/OuterTune/OuterTune/wiki/Frequently-Asked-Questions-(FAQ)
F-DroidGitHubIzzyOnDroid
Outfield
APK
Simple OBS remote control, supports image of current scene, scene switching, and starting/stopping recording/streaming. Requires the obswebsocket plugin on OBS.
F-Droid
Outline
APK
The Outline Client is a cross-platform VPN or proxy client. The Outline Client is designed for use with the Outline Server software, but it is fully compatible with any Shadowsocks server.
F-DroidGitHub