List of free and open-source iOS applications

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This is an incomplete list of notable applications (apps) that run on iOS which meet guidelines for free software and open-source software.

Application name Description License Source Notes
Adguard Ad blocker for iOS GPLv3 git Also available for Windows, Linux, macOS and Android.
Authenticator Two-Factor Authentication Client MIT git
Beam reddit iOS client GPLv2 git
Bitwarden password manager GPLv3 git Also available for Windows, Linux, macOS and Android.
ChatSecure Encrypted XMPP client GPLv3 git
Delta Chat Email-based instant messaging GPLv3 git Also available for Windows, Linux, macOS and Android.
DuckDuckGo DuckDuckGo search engine client Apache 2.0 git Also available for Firefox, Chrome, Safari and Android.
Feeds4U RSS reader app for iOS MIT git
Firefox for iOS Mobile web browser MPL 2.0 git
Joplin Note taking and to-do application with synchronization capabilities MIT git Also available for Android, Windows, macOS and Linux.
Kickstarter App for the website kickstarter.com Apache 2.0 git Also available for Android
LibTerm iOS sandboxed terminal with Python 3.7 and Lua 5.3 MIT git
Linphone Video SIP/VoIP client GPLv2 git Also available for Android.
Local Storage Local Storage file browser for iOS GPLv3 git
Loose-Leaf Note taking app with PDF support MIT git
MiniKeePass Password manager GPLv3 git
MAPS.ME Offline maps and navigation using OpenStreetMap data Apache 2.0 git Also available for Android.
Nextcloud File sync & share, with encryption possible GPLv3 git Also available for Android, Windows, macOS and Linux.
Nextcloud Talk Chat, voice and video calling GPLv3 git Also available for Android.
OctoPod OctoPrint client for controlling 3D printers Apache 2.0 git
Onion Browser An open-source, privacy-enhancing web browser for iOS, utilizing the Tor anonymity network own git
OsmAnd Offline maps and navigation using OpenStreetMap data MIT git Also available for Android.
OwnCloud File sync & share (the official ownCloud app) GPLv3 git Also available for Android, Windows, macOS and Linux.
Riot.im Matrix collaboration client for iOS Apache 2.0 git Also available for Android, Web and Linux.
Signal Encrypted instant messaging, voice and video calling GPLv3 git Also available for Android, Windows, MacOS and Linux.
Simplenote Encrypted notes GPLv2 git Also available for Android, Windows, MacOS and Linux.
Surespot Encrypted instant messaging GPLv3 git Also available for Android.
Telegram Instant messaging GPLv2 git Also available for Android, Windows Phone, and Firefox OS.
Tutanota E-Mail client Tutanota GPLv3 git Also available for Android, Windows, MacOS and Linux.
Vim A port of the UNIX based text editor to iOS, with syntax highlighting Free software git
VLC for iOS A port of the free VLC media player MPL 2.0
GPLv2+
git
VPNOn Control your VPN connections MIT git
The White House The official White House app MIT git
wikiHow wikiHow app GPL git
Wikipedia The official Wikipedia app MIT git Also available for Android, webOS and Kindle.
Wire Encrypted instant messaging, voice and video calling GPLv3 git Also available for Android, Windows, MacOS and Linux.
WordPress The official WordPress app GPLv2 git Also available for Android.

External links[edit]

  • "Open Source iOS Apps – Real iOS Source Code Examples". Maniacdev.com. 25 August 2014.
  • "Open Source iPhone and iPad Apps". FreeSMUG.
  • "50+ Open Source iPhone Apps For iPhone Developers". Ntt.cc. 5 September 2010.
  • "Collaborative List of Open-Source iOS Apps". GitHub.