Android - Open-Source, Privacy, and convenience

The best Android apps for privacy and convenience. Open-source preferred. Remember, the most secure way to download an app is from its repo, such as Github. The Google Play store is actually more secure than F-Droid, as long as the app is trustworthy.

All of these have been tested as working on GrapheneOS and Android.

But remember, the more apps, the higher the attack surface.

Sam Lander
Sam LanderList by Sam Lander, last updated 2024-07-10
  1. Necessary

  2. Obtainium icon

    A safer way than F-Droid to download apps... directly from the source with no middle-man. See: https://www.youtube.com/watch?v=JiN37bn0OE8&t

    • App Store
    • FreeOpen Source
    • Android
    • Android Tablet
    • F-Droid
    • ...
    Obtainium screenshot 1
    Obtainium screenshot 2
    Obtainium screenshot 3
  3. GrapheneOS icon

    The most secure/private OS to replace Google.

    Alternative, CalyxOS: CalyxOS

    • Mobile OS
    • FreeOpen Source
    • Android
    • Android Tablet
    • ...
    GrapheneOS screenshot 1
  4. F-Droid icon

    Probably the most trustworthy app store. I use F-Droid Basic which is a minimal version of this you can find on F-Droid.

    I add Izzy to it: IzzyOnDroid To add it to F-Droid, go to settings and add to repository: https://apt.izzysoft.de/fdroid/ Here is the Repo: https://gitlab.com/IzzyOnDroid/repo

    HOWEVER. While it may be the most secure store, it is not the most secure way to add apps. Not only are they updated less frequently, but it is not as secure as downloading from a repo like on GitHub (you can set up something like an RSS feed to get notified of new updates to download for your apps).

    • App Store
    • FreeOpen Source
    • Online
    • Android
    • Android Tablet
    • F-Droid
    • ...
    F-Droid screenshot 1
    F-Droid screenshot 2
    F-Droid screenshot 3
  5. K-9 Mail icon

    The best mail client for Android. Open-source.

    You can encrypt mail with an add-on app, OpenKeychain: OpenKeychain

    • Email Client
    • FreeOpen Source
    • Android
    • Android Tablet
    • F-Droid
    • ...
    K-9 Mail screenshot 1
  6. Bitwarden icon

    Cross-platform password manager

    Alternatively, Proton Pass: Proton Pass Buttercup: Buttercup Lesspass: LessPass

    • Password Manager
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Apple Watch
    • Snapcraft
    • Microsoft Edge
    • Vivaldi
    • Google Chrome
    • Flathub
    • Microsoft SQL Server
    • Tor Browser
    • Safari
    • F-Droid
    • Software as a Service (SaaS)
    • Flatpak
    • Cloudron
    • Opera
    • Chocolatey
    • Mono
    • Brave
    • Mozilla Firefox
    • ...
    Desktop app on macOS
  7. Aegis Authenticator icon

    Open source authenticator for Android only.

    Recommend 2FAS if you want on iPhone also.

    Alternatively and for iPhone as well,

    • 2FAS (also has browser extension: 2FA Authenticator (2FAS) (backup via encrypted folder on Google Drive (not automatic android backup) or manual encrypted file, app lock, browser extension (wouldn't recommend for security), import, blocks screenshot with timer to allow).
    • FreeOTP: FreeOTP (backup via Android Google automatic backup, or download ecrypted backup file. However, password cannot be changed later, and no 2fa itself, like email or phone.)
      Authenticator Pro: Authenticator Pro (only Android)

    Okay, but above are better,

    • Bitwarden Authenticate: Bitwarden Authenticator (android automatic backups or manual unencrypted file backups. Only biometric app password. )

    Not recommended, based in India, can't see client-side what is happening, requires login:

    • ...
    Aegis Authenticator screenshot 1
    Aegis Authenticator screenshot 2
    Aegis Authenticator screenshot 3
  8. OpenVPN icon

    Open-source VPN client. Works with every trustworthy VPN provider. Preferable to closed-source apps.

    Alternatively, and faster than OpenVPN, but not all VPN providers use it yet, WireGuard: WireGuard

    Alternatively, a proxy, Shadowsocks: Shadowsocks

    But consider making your own VPN with a VPS: https://gist.github.com/joepie91/5a9909939e6ce7d09e29

    List of some good VPN: https://offshore.cat/vpn

    • VPN Service
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Cloudron
    • ...
    OpenVPN screenshot 1
    OpenVPN screenshot 2
    OpenVPN screenshot 3
  9. RethinkDNS icon

    DNS + Firewall. Open-source. Be aware that alternative DNS opens you up to being fingerprinted as you don't blend in as well.

    Alternatively, (though none other than RethinkDNS allow simultaneous usage with a VPN protocol like Wireguard from my knowledge. they may or may not allow the use of proxies). TrackerControl: TrackerControl AdGuard: AdGuard Blokada: Blokada

    • Ad Blocker
    • FreeOpen Source
    • Online
    • Android
    • Android Tablet
    • F-Droid
    • ...
    RethinkDNS screenshot 1
    RethinkDNS screenshot 2
    RethinkDNS screenshot 3
  10. Browsers

  11. Vanadium icon

    Currently the most secure browser on Android (need GrapheneOS).

    • ...
  12. Mull icon

    Good, private browser for Android

    Alternatively, a Chromium-based browser, Cromite: cromite

    • ...
    Mull screenshot 1
  13. Standard Notes icon

    Cross-platform, private and open-source note-taking app that syncs across devices.

    • Note-taking Tool
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Self-Hosted
    • F-Droid
    • ...
    Standard Notes screenshot 1
  14. Messaging

  15. KryptEY icon

    Android keyboard for secure E2EE communication through the signal protocol in any messenger. Communicate securely and independent, regardless of the legal situation or whether messengers use E2EE.

    • ...
    KryptEY screenshot 1
  16. Element icon

    A secure and private messaging app that does not require a phone number.

    For even more security (but not plug and play), Briar: Briar

    • Group Chat App
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Matrix.org
    • Flathub
    • F-Droid
    • Cloudron
    • ...
    Video calls for desktop and mobile
  17. Signal icon

    One of the most secure messaging apps, even endorsed by Snowden. However, at this time you have to use a phone number.

    • Instant Messenger
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • iPad
    • Flathub
    • Ubuntu
    • Debian
    • ...
    Signal screenshot 1
  18. Telegram icon

    The most convenient messaging app that lets you delete messages at any time, and supports extremely large groups.

    Alternatively, a few different (sometimes less) features and faster and still official app, TelegramX: Telegram X

    Alternatively for a web app (there are a few of these you can find on telegram.org), Telegram Web A: Telegram Web A

    Alternatively for more features, but not official and some controversy with developers (use at own risk), NekoGram X: NekoGram X

    • Group Chat App
    • FreemiumProprietary
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • Windows Phone
    • iPad
    • Apple Watch
    • Linux Mobile
    • Android Wear
    • PortableApps.com
    • FreeBSD
    • ...
    Telegram Desktop
  19. Media

  20. VLC Media Player icon

    Works well. Unlike Desktop, it remembers your place by default. Good for playing audiobooks while driving or watching videos.

    • Media Player
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • BSD
    • iPad
    • AppImageHub
    • Apple Watch
    • Snapcraft
    • Google Chrome
    • Apple TV
    • Flathub
    • PortableApps.com
    • F-Droid
    • Kindle Fire
    • Haiku
    • Android TV
    • Homebrew
    • Chocolatey
    • ...
    VLC Media Player screenshot 1
  21. Markor icon

    Simple text editor that supports both .txt and .md, so you can use it with notebooks like Zim Wiki or Obsidian if you sync them on the cloud.

    • ...
    Markor screenshot 1
    Markor screenshot 2
    Markor screenshot 3
  22. Open Camera icon

    Use this for raw photos.

    If you are using Graphene, you may also want Google's proprietary camera app, Google Camera: Google Camera

    • Camera App
    • FreeOpen Source
    • Android
    • Android Tablet
    • F-Droid
    • ...
    Open Camera screenshot 1
  23. ImagePipe icon

    Open-source app that reduces image size and wipes metadata from images before sending.

    • ...
    home screen of the app
    editing
  24. Screenshot Tile icon

    Nice screenshot app you can use. You can add it to your quick settings tiles in the notification shade at the top, as an overlay, or by pressing buttons like you normally might.

    Then it lets you drag a box rather than having to crop later (but can also snap the entire screen).

    Quite efficient for meming.

    • ...
    Screenshot Tile screenshot 1
  25. SpotiFlyer icon

    Open-source Spotify music downloader

    Alternatively, Spotube: Spotube Libretube: LibreTube

    • ...
    SpotiFlyer screenshot 1
  26. NewPipe icon

    Front-end for YouTube. Allows you to easily download videos/mp3, doesn't need Google Play services, let's you listen to music in background, etc.

    Alternatively and to remove ads: Tubular: Tubular

    Alternatively just to download videos/music from YouTube, Seal: Seal

    • YouTube Client
    • FreeOpen Source
    • Android
    • SoundCloud
    • YouTube Music
    • Bandcamp
    • YouTube
    • F-Droid
    • PeerTube
    • ...
    Trending,
  27. OSS Document Scanner icon

    Turn photos of documents into small .pdf/.jpg. Good at making them look like black/white or color scans and cleaning up imperfections.

    Open-source, and edits into a small file even better than CamScanner. But at least on GrapheneOS, it doesn't take the photos well, so I take photos with the normal camera first.

    For a good proprietary option, but full of ads and not pro-privacy, CamScanner: CamScanner

    • ...
    OSS Document Scanner screenshot 1
  28. Security

  29. EDS (Encrypted Data Store) icon

    Supports your Veracrypt containers on Android. Open-source.

    • ...
    EDS (Encrypted Data Store) screenshot 1
  30. Orbot icon

    Orbot is a freely licensed open-source application developed for the Android platform. It acts as a front-end to the Tor binary application, and also provides an HTTP Proxy for connecting web browsers and other HTTP client applications into the Tor SOCKS interface.

    • VPN Service
    • FreeOpen Source
    • Mac
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • ...
    Orbot screenshot 1
    Orbot screenshot 2
    Orbot screenshot 3
  31. SnoopSnitch icon

    Collects and analyses mobile radio data to make you aware of your mobile network security and to warn you about threats like fake base stations (IMSI catchers), user tracking, and SS7 attacks.

    • FreeOpen Source
    • Android
    • ...
    SnoopSnitch screenshot 1
    SnoopSnitch screenshot 2
    SnoopSnitch screenshot 3
  32. Haven icon

    Haven is for people who need a way to protect their personal spaces and possessions without compromising their own privacy. It is an Android application that leverages on-device sensors to provide monitoring and protection of physical spaces.

    • FreeOpen Source
    • Android
    • ...
    Haven screenshot 1
    Haven screenshot 2
    Haven screenshot 3
  33. DPI Tunnel icon

    Anti-censorship tool to bypass deep packet inspection.

    • ...
    DPI Tunnel screenshot 1
    DPI Tunnel screenshot 2
    DPI Tunnel screenshot 3
  34. Catch the Man-in-the-Middle icon

    This tool helps you detect potential "man-in-the-middle" attacks by comparing the security fingerprints of your SSL certificate with the one seen from a trusted external network. If the fingerprints don't match, it suggests someone might be tampering with your internet traffic.

    • FreeProprietary
    • Android
    • ...
    Catch the Man-in-the-Middle screenshot 1
    Catch the Man-in-the-Middle screenshot 2
    Catch the Man-in-the-Middle screenshot 3
  35. TrackerControl icon

    Allows users to monitor and control the widespread, ongoing, hidden data collection in mobile apps about user behavior ('tracking').

    Alternatively, Exodus: Exodus Privacy

    ReThink DNS above may have much of the same features already, but TrackerControl may have some different information present and finetuning.

    • Privacy Tool
    • FreeOpen Source
    • Android
    • Android Tablet
    • F-Droid
    • ...
    TrackerControl screenshot 1
    TrackerControl screenshot 2
    TrackerControl screenshot 3
  36. Hypatia Malware Scanner icon

    ClamAV antivirus for Android. Open-source

    • ...
    Hypatia Malware Scanner screenshot 1
    Hypatia Malware Scanner screenshot 2
    Hypatia Malware Scanner screenshot 3
  37. URLCheck icon

    Set this as your default browser to automatically clean links of trackers and then open them in your browser of choice.

    Alternatively, Leon: Léon – The URL Cleaner

    • FreeOpen Source
    • Android
    • F-Droid
    • ...
    URLCheck screenshot 1
  38. SuperFreezZ icon

    Freeze apps (even some system apps) that you do not use. Save battery, increase security. Open-source.

    • ...
    SuperFreezZ screenshot 1
    SuperFreezZ screenshot 2
    SuperFreezZ screenshot 3
  39. Koodous icon

    Scan .apk files and Android threat protection

    • FreemiumProprietary
    • Online
    • Android
    • ...
    Koodous screenshot 1
  40. Netmonitor icon

    Monitor GSM/CDMA/LTE network: current and neighboring cell infos, signal strength. Multi SIM support (when possible). Use GPS/geolocation. Generate database with custom info on cells. Export log to file CLF/KML. Map shows cell location. List WiFi access points.

    • ...
    Netmonitor screenshot 1
    Netmonitor screenshot 2
    Netmonitor screenshot 3
  41. Privacy Indicators icon

    🔔 Get the famous "Recording Indicators" feature of iOS14 to android. Get notified every time a third-party app or a service uses camera or microphone. - GitHub - NitishGadangi/Privacy-Indicator-App: 🔔 Get the famous "Recording...

    • FreeOpen Source
    • Android
    • ...
    Privacy Indicators screenshot 1
    Privacy Indicators screenshot 2
    Privacy Indicators screenshot 3
  42. AirGuard icon

    Find out if someone is tracking you. May decrease battery. Open-source

    • FreeOpen Source
    • Android
    • F-Droid
    • ...
    AirGuard screenshot 1
    AirGuard screenshot 2
    AirGuard screenshot 3
  43. Nextcloud icon

    Open-Source Cloud Storage

    Alternatively, OwnCloud: ownCloud

    For a good free, proprietary, but privacy-respecting option, kDrive: kDrive ProtonDrive: Proton Drive Filen: Filen

    For a different sync option, Syncthing: Syncthing

    • Cloud Storage Service
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • F-Droid
    • Cloudron
    • ...
    Simple and powerful file sync & share
  44. Greentooth icon

    Auto-shut off bluetooth when not in use for security and battery. Open-source.

    Not needed with GrapheneOS now, as this option is built-in.

    • FreeOpen Source
    • Android
    • F-Droid
    • ...
    Greentooth screenshot 1
    Greentooth screenshot 2
  45. Other

  46. FUTO Voice Input icon

    FUTO Voice Input is an application that lets you do speech-to-text on Android, integrating with third party keyboards or apps that use the generic speech-to-text APIs.

    • ...
    FUTO Voice Input screenshot 1
    FUTO Voice Input screenshot 2
    FUTO Voice Input screenshot 3
  47. Unitto  icon

    Small and lightweight, open-source calculator and converter.

    • ...
    Unitto  screenshot 1
  48. Breezy Weather icon

    Breezy Weather is a fork of GeometricWeather (LGPL-v3 license), currently no longer updated.

    • ...
    Breezy Weather screenshot 1
  49. Blue Line Console icon

    A quick, text-based launcher. You don't have to use it as a launcher. You can also set a widget.

    • ...
    Blue Line Console screenshot 1
    Blue Line Console screenshot 2
    Blue Line Console screenshot 3
  50. Echo (secret recorder) icon
    • Dicontinued. No longer working properly on current Android.

    Constantly record audio on your phone in small audio files. Open-source.

    • FreeOpen Source
    • Android
    • F-Droid
    • ...

This list was created by Sam Lander Jun 22, 2023 and was last updated Jul 10, 2024. The list has 44 apps.

You can create your own lists from our large database of apps either for your own sake or if you want to share some great apps with other people.


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