List of free and open-source iOS applications

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
Daily Dozen	Plant-Based Food Tracker	GPLv3	git	Also available for Android.
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 Focus	Mobile web browser	MPL 2.0	git	Also available for Android.
Firefox for iOS	Mobile web browser	MPL 2.0	git
Jami	Softphone and instant messager	GPLv3	git	Also available for Windows, Linux, macOS and Android.
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
Open Food Facts	Open-source and open-data food scanner	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.
Pass for iOS	iOS client compatible with Pass command line application	MIT	git	Also available for Android, Windows, macOS and Linux.
ProtonMail	E-Mail client ProtonMail	GPLv3	git	Also available for Android.
Raivo OTP	OTP manager	own	git
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.
Siskin IM	XMPP client with OMEMO support	GPL v3	git
Standard Notes	Encrypted notes	GPL v3
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.
Zeplin iOS	First unofficial community driven Zeplin iOS Application	GPLv3	git	Available for iOS.

References

External links

"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.
"Open Source at NutritionFacts.org". NutritionFacts.

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