Liberate your Android

This is a list of Alternative and Open Source Android Apps and OS I could recommend because I use most of them since November 2013 under Paranoid Android with a Nexus 5.

Most of these apps are available via F-Droid.

  • AntennaPod icon


    Free Open Source Android Website

    A podcast manager allowing you to subscribe and download automatically your favorite podcasts.

  • AOKP icon


    Free Open Source Android Android Tablet Website

    If you're serious about degooglelising you're phone than replace the ROM.

  • DAVdroid icon


    Free Open Source Android Android Tablet Website

    Sync you're calendar, contacts and notes with your cloud.

  • DiskUsage icon


    Free Open Source Android Website

    DiskUsage provides a way to find out which files and directories on the SD card of your Android phone are consuming the most space. It displays diagram with directories/subdirectories proportional to their size. Users are allowed to zoom in to look at specific directory content.

  • Document Viewer icon

    Document Viewer

    Free Open Source Android Android Tablet Website

    A fork of the last GPL version of Small EBookDroid iconEBookDroid. Supports the following formats:

    XPS (OpenXPS)
    Comic Books (cbz) (NO support for cbr (rar compressed))
    FictionBook (fb2,

    Collaboration with electronic publication sites and access to online ebook catalogs is allowed by the supported OPDS protocol.

  • F-Droid icon


    Free Open Source Web Android Website

    A good start to degooglelising you're apps and android is to replace the Google Play store.

  • FreeOTP icon


    Free Open Source Android iPhone Android Tablet iPad Website

    One Time Password manager to replace Google Authenticator.

  • K-9 Mail icon

    K-9 Mail

    Free Open Source Android Android Tablet Website

    K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more.

  • Kimai icon


    Free Open Source Mac Windows Linux Web Self-Hosted Website

    Kimai is a free open source timetracker. It tracks work time and prints out a summary of your activities on demand. Yearly, monthly, daily, by customer, by project, by action …

    It’s simplicity is its strength. Due to Kimai’s web browser based interface it runs cross-platform. Likewise you can install it as a web service or as a single-user program on your local workstation.

  • Mozilla Firefox icon

    Mozilla Firefox

    Free Open Source Mac Windows Linux Android iPhone ... Android Tablet BSD iPad Haiku Website

    Mozilla Firefox (known simply as Firefox) is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation.

  • Nextcloud icon


    Free Open Source Mac Windows Linux Web Android ... iPhone Android Tablet iPad Self-Hosted Cloudron Website

    Help you to sync your data, calendar, contact and note like we do with Google Cloud and Apple iCloud.

  • NewPipe icon


    Free Open Source Android YouTube Website

    NewPipe is a lightweight YouTube front-end for Android.

    It doesn't need the YouTube-API or any Google Play Services, as NewPipe only parses the YouTube website in order to gain the information it needs.
    Therefore this app can be used on devices without Google Services installed. Also, you don't need a YouTube account to use NewPipe, and it's FLOSS.


    Search videos
    Display general information about a video
    Watch YouTube videos
    Listen to YouTube videos (experimental)
    Select the streaming player to watch the video with
    Download videos
    Download audio only
    Open a video in Kodi
    Show Next/Related videos
    Search YouTube in a specific language
    Watch age restricted material
    Display general information about channels

  • Paranoid Android icon

    Paranoid Android

    Free Open Source Android Android Tablet Website

    If you're serious about degooglelising you're phone than replace the ROM.

  • OpenMentoring icon


    Free Open Source Android Website

    Helps access and share practical educational content on digital security. This app exists as a part of a digital platform which will provide essential digital security information.

  • Shaarli icon


    Free Open Source Mac Windows Linux Web Self-Hosted ... Cloudron Website

    Shaarli is a minimalist link sharing software you can install on your own website.

  • icon

    Free Open Source Android Kindle Fire Website

    Protect your communication in transit and on your phone. Silence (formerly SMSSecure) is a full replacement for the default text messaging application: all messages are encrypted locally and messages to other Silence users are encrypted over the air.

  • 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 superfast, simple and free. It is like SMS, but more powerful. .

  • TTRSS-Reader icon


    Free Open Source Android Android Tablet Website

    TTRSS-Reader is a client application for the project Small Tiny Tiny RSS iconTiny Tiny RSS , a PHP-based online feedreader which runs on your own webspace. If you want to host your own feedreader, want a cross-device-solution and don't want to use Small Google Reader iconGoogle Reader this is your app! TTRSS-Reader offers automatic update on startup, filtering articles by status and efficient browsing through categories and the virtual categories "Fresh", "Starred" and "Published Articles" as well as Labels which you can define by yourself. You can browse the articles offline when they have been synchronized before and the ImageCache can be used to pre-load all included images from the articles too.


    • Swipe for faster browsing
    • Mark everything (whole category or all categories) as read
    • Navigate through articles with gestures or volume-buttons
    • View/download images/videos/music attached to Articles
    • Cache articles and images locally
    • Share URLs
    • Easily mark things as read, starred or publish/comment them
    • SSL-Support with self-signed certificates
    • Fast JSON-Parsing with stream-based parser GSON
    • Scheduled updates via Tasker/Locale
    • Layout optimized for tablets
    • Dark and light themes available
    • many more, Changelog and Feature-List can be found on the project-page...

  • VLC Media Player icon

    VLC Media Player

    Free Open Source Mac Windows Linux Android iPhone ... Chrome OS Windows RT Android Tablet BSD Windows Phone iPad Apple Watch Apple TV Kindle Fire Haiku Website

    VLC is a free and open source cross-platform multimedia player and framework. Owned by the non-profit organization VideoLAN.

  • VyprVPN icon


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

    VyprVPN makes reclaiming your online privacy, security, and freedom as simple as tapping to connect.

  • wallabag icon


    Free Open Source Windows Linux Web Android iPhone ... Windows RT Android Tablet Windows Phone iPad Self-Hosted Chrome Cloudron Opera Firefox Website

    wallabag is an opensource self hostable application for saving web pages.

    Comfortable reading

    wallabag extracts the article's content (and only its content!) and displays it in a comfortable view.
    Moreover, wallabag is responsive: you can read your articles on your smartphone or your tablet.

    Applications for smartphone

    Android, iOS or Windows Phone: wallabag application is available for your smartphone.
    It's so easy to read your saved articles on your phone. And it also works when you're offline!

    Migrate from other services

    If you already have an account on Pocket©, Readability©, Instapaper© or even wallabag, you can import your data into wallabag.

    Retrieve your articles easily thanks to filters

    wallabag provides a powerful tool to filter your saved articles. It's so easy to look for them.

    Available in your language

    wallabag is translated into more than ten languages. If yours is not yet available, please help translate.

    Keep your data

    All your data belongs to you. You can download all your articles in many formats: PDF, ePUB, .mobi, JSON, CSV, txt or HTML.

  • Wifi Analyzer icon

    Wifi Analyzer

    Free Android Android Tablet Website

    Wifi Analyzer is a handy tool which helps you to select a better channel for your wireless router. It turns you android phone into a handy Wi-Fi analyzer!

    App Permissions (from Google Play)

    Version 3.8.5 can access:
    -modify or delete the contents of your USB storage
    -test access to protected storage
    -view Wi-Fi connections
    -connect and disconnect from Wi-Fi
    -prevent device from sleeping
    -full network access
    -view network connections
    -install shortcuts

  • Zoiper icon


    Free Personal Mac Windows Linux Web Android ... iPhone Windows Phone Website

    Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to work with any IP-based communications systems and infrastructure.

    Zoiper Classic BIZ provides secure high-quality voice calls and conference, fax sending and receiving functionality, and enhanced IP-calling features wrapped in a compact interface and small download size.