Interesting and open-source Android apps

A list of interesting and open source Small Android iconAndroid apps.

  • F-Droid icon


    Free Web Android Android Tablet Website

    F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.


  • Yalp Store icon

    Yalp Store

    Free Android Website

    Yalp Store lets you download apps from Small Google Play Store iconGoogle Play Store as apk files. It searches for updates of installed apps when it starts and lets you search for other apps. That's it. Yalp saves downloaded apks to your default download folder so you can later open it in your favourite file manager app and tap each one to install the apps.


  • Aptoide icon


    Free Web Android Android Tablet Kindle Fire Website

    Aptoide is a distributed marketplace for mobile applications which runs on the Android operating system. In Aptoide, unlike the default Small Google Play Store iconGoogle Play Store, there is not a unique and centralized store but each user manages their own store.


  • KISS Launcher icon

    KISS Launcher

    Free Android Website

    KISS is a blazingly fast launcher for Android requiring nearly no memory to run.
    Search through your apps, contacts and settings lightning fast. No more time spent trying to find the app you want to launch: enter a few characters of the name and hit enter. Need to call someone? Don't meddle with the call log, just give three letters of their name and push the "phone" button. KISS becomes smarter and smarter as you use it, pushing forward results you're more likely to select.


  • OpenLauncher icon


    Free Android Website

    OpenLauncher is an open source Android launcher project, started from scratch. We aim to create a powerful and community-driven Android launcher.


  • Signal icon


    Free Mac OS X Windows Linux Android iPhone ... Android Tablet iPad Chrome Website

    Privacy is possible, Signal makes it easy. Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or attachments all with complete privacy. The server never has access to any of your communication and never stores any of your data.


  • icon

    Free Android Kindle Fire Website

    Silence (formerly SMSSecure) is an SMS/MMS application that allows you to protect your privacy while communicating with friends. Using Silence, you can send SMS messages and share media or attachments with complete privacy. It's a fork of Small Signal iconSignal.


  • Wire icon


    Free Mac OS X Windows Linux Web Android ... iPhone Android Tablet iPad Website

    Wire is a secure and private messenger for phones, tablets and desktop. Crystal clear voice and video calls, private group chats, file sharing, audio and video messages - everything is end-to-end encrypted. Wire works on Android, iOS, Windows, MacOS, Linux and any modern web browser.


  • Telegram icon


    Free Mac Windows Linux Web Windows Mobile ... Android iPhone Blackberry Android Tablet BSD Windows Phone iPad Apple Watch Android Wear FreeBSD Website

    Telegram is a messaging app with a focus on speed and security. It’s super-fast, simple, secure and free. Telegram seamlessly syncs across all of your devices and can be used on desktops, tablets and phones alike. You can send an unlimited amount of messages, photos, videos and files of any type (.doc, .zip, .pdf, etc.). Telegram groups have up to 5000 people and you can create channels to broadcast messages to an unlimited number of subscribers.

    "It's worth a mention that Telegram's server side is not open-source. However, that doesn't really matter for security purposes, because the end-to-end encryption between client-side end users is tested and works flawlessly in Telegram regardless of the software on the server." — enigmatoid

    "It's been shown that Telegram is very insecure and shouldn't be used if security and privacy are your primary concerns, which is something that Telegram has (and still does) advertised as a major feature." — JackDostoevsky


  • Conversations icon


    Free Android Android Tablet Website

    Conversation is a free and open source Jabber/XMPP client for Android 4.0+ smartphones that has been optimized to provide a unique mobile experience. Easy to use, reliable, battery friendly. With built-in support for images, group chats and e2e encryption.


  • Kontalk icon


    Free Android Self-Hosted Website

    Kontalk is a secure instant messenger, allowing you to send and receive text, image and voice messages (other file types coming soon) to and from other Kontalk users completely free of charge.


  • Antox icon


    Free Android Website

    Antox is an Android 4+ client for Small Tox iconTox created by Mark Winter. It aims to bring the full multimedia support Tox offers to your device, although it's still currently in heavy development.


  • Jitsi icon


    Free Mac OS X Windows Linux Web Android ... BSD Website

    Jitsi for Android is an Android port of the Jitsi project: The most feature-rich communicator with support for encrypted audio/video, chat and presence over SIP and XMPP.


  • Hack Chat icon

    Hack Chat

    Free Web Android Self-Hosted Website is a minimal, distraction-free chat application. Create a chatroom with just a name, there is no preset channel so just enter a chatroom name and a nickname, share the link and communicate.


  • icon

    Free Linux Web Android iPhone iPad ... Self-Hosted Chrome Safari F-Droid Firefox Website

    Riot is a simple and elegant collaboration environment that gathers all of your different conversations and app integrations into one single app.


  • K-9 Mail icon

    K-9 Mail

    Free Android Android Tablet Website

    K-9 Mail is an open-source e-mail client with search, IMAP push email, multi-folder sync, flagging, filing, signatures, bcc-self, PGP, mail on SD & more! K-9 supports IMAP, POP3 and Exchange 2003/2007 (with WebDAV).


  • ProtonMail icon


    Freemium Web Android iPhone iPad Website

    ProtonMail is the world’s largest encrypted email service with over 1 million users. The ProtonMail secure email app for Android brings easy-to-use email encryption to your mobile device by seamlessly integrating PGP end-to-end encryption. ProtonMail also provides a modern user interface with a full set of innovative features such as customizable swipe gestures and the ability to send expiring emails.


  • Tutanota icon


    Free Personal Web Android iPhone iPad Website

    Tutanota is a free and open source web-mail client that focuses on privacy. All data is stored encrypted and can not be searched, i.e. for commercial usage. It offers dead easy end-to-end encryption.


  • Lightning Browser icon

    Lightning Browser

    Free Android Android Tablet Website

    Lightning is a simple, fast web browser that focuses on design, security, and efficiency. It uses material design, doesn't track you, give you lots of options to protect your privacy, and does it in under 2MB. It gets out of the way of the user.


  • Firefox Focus icon

    Firefox Focus

    Free Android iPhone Android Tablet iPad Website

    Firefox Focus is the Mozilla-made browser that considers your privacy first and foremost. By default, it blocks ad-trackers and it helps keep things secure by providing easy ways to clear your browsing history, including passwords and cookies.


  • Brave icon


    Free Mac Windows Linux Android iPhone ... Android Tablet iPad Website

    Brave has joined forces with LinkBubble to bring you a faster web - by blocking the ads and trackers that get in your way plus all the features you love from LinkBubble. Just go to the settings to turn on or off privacy features like ad blocking, tracker protection and Small HTTPS Everywhere iconHTTPS Everywhere.


  • Orbot icon


    Free Android Android Tablet Website

    Orbot is a free proxy app that empowers other apps to use the internet more securely. Orbot uses Small Tor iconTor 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 creates a truly private mobile internet connection.


  • Orfox icon


    Free Android Website

    Orfox is a new privacy-enhanced browser for Android, based on Small Mozilla Firefox iconMozilla Firefox, configured by default to work with Small Orbot iconOrbot: Tor for Android.
    Orfox is built from the same source code as Small Tor iconTor 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, by supporting as much of their actual code as possible, and extending their work into the additional Android components of Firefox for Android.


  • Twidere icon


    Free Android Android Tablet Website

    Twidere is a powerful Small Twitter iconTwitter app for Android 4.0+, which gives you a full Material experience and nearly complete (or even better) Twitter feature.


  • Slide for Reddit icon

    Slide for Reddit

    Free Android Website

    Slide for Reddit is a rock-solid material-designed unofficial browser for Small Reddit iconReddit with an easy to use UI and tons of customization. Slide is ad-free, open source, and is packed with many unique features.


Feel free to add cool open source Android apps which would be missing from this list or to correct any mistake you could spot on this GitHub repo.