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 where source code is available under a free software/open-source software license. Note however that much of this software is dual-licensed for non-free distribution via the iOS app store; for example, GPL licenses are not compatible with the app store.

Application nameDescriptionLicenseSourceNotes
Brave browser Mobile web browserMPL 2.0 git Also available for Android, Windows, macOS and Linux.
Bitwarden Password managerGPLv3 git Also available for Windows, Linux, macOS and Android.
ChatSecure Encrypted XMPP clientGPLv3 git
Collabora Online Office suite compatible with Microsoft Office, enterprise ready LibreOffice MPLv2.0 git Also available for Android, ChromeOS, iPadOS, Windows, macOS and Linux.
DuckDuckGo DuckDuckGo search engine clientApache 2.0 git Also available for Firefox, Chrome, Safari and Android.
Element Matrix collaboration client for iOSApache 2.0 git Also available for Android, Web and Linux.
Firefox Focus Mobile web browserMPL 2.0 git Also available for Android.
Firefox for iOS Mobile web browserMPL 2.0 git
Infomaniak DriveFile sync and share - The secure cloudGPLv3 git Also available for Windows, Linux, macOS and Android.
Jami Softphone and instant messengerGPLv3 git Also available for Windows, Linux, macOS and Android.
Joplin Note taking and to-do application with synchronization capabilitiesMIT git Also available for Android, Windows, macOS and Linux.
Kickstarter App for the website kickstarter.comApache 2.0 git Also available for Android.
Linphone Video SIP/VoIP clientGPLv2 git Also available for Android.
MAPS.ME Offline maps and navigation using OpenStreetMap dataApache 2.0 git Also available for Android.
MuPDF PDF readerAGPL v3+ git Also available for Android and Windows and unix-like systems.
NetNewsWire RSS readerMIT git Also available for macOS.
Nextcloud File sync and share, with encryption possibleGPLv3 git Also available for Android, Windows, macOS and Linux.
Nextcloud TalkChat, voice and video callingGPLv3 git Also available for Android.
OnlyOffice Open-source office suite compatible with Microsoft Office AGPL v.3 git Also available for Android, Windows, macOS and Linux.
Open Food Facts Open-source and open-data food scannerApache 2.0 git Also available for Android.
Onion Browser An open-source, privacy-enhancing web browser for iOS, utilizing the Tor anonymity network own git
Organic Maps Offline maps and navigation using OpenStreetMap dataApache 2.0 git Also available for Android and on F-Droid and AppGallery.
OsmAnd Offline maps and navigation using OpenStreetMap dataMIT git Also available for Android.
OwnCloud File sync and share (the official ownCloud app)GPLv3 git Also available for Android, Windows, macOS and Linux.
ProtonMail E-Mail client ProtonMailGPLv3 git Also available for Android.
Signal Encrypted instant messaging, voice and video callingGPLv3 git Also available for Android, Windows, MacOS and Linux.
Simplenote Encrypted notesGPLv2 git Also available for Android, Windows, MacOS and Linux.
Surespot Encrypted instant messagingGPLv3 git Also available for Android.
Telegram Instant messagingGPLv2 git Also available for Android, Windows Phone, and Firefox OS.
Tutanota Email clientGPLv3 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 playerMPL 2.0
The White House The official White House appMIT git
wikiHow wikiHow appGPL git
Wikipedia The official Wikipedia appMIT git Also available for Android, webOS and Kindle.
Wire Encrypted instant messaging, voice and video callingGPLv3 git Also available for Android, Windows, MacOS and Linux.
WordPress The official WordPress appGPLv2 git Also available for Android.

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