List of free and open-source iOS applications

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.
free softwareopen-source softwareAdblock PlusAdguardAltstoreBrave browserBitwardenBlueskyChatSecureCollabora OnlineMicrosoft OfficeMPLv2.0DuckDuckGoElementFirefox FocusFirefox for iOSiNaturalistInfomaniakJoplinKickstarterLinphoneMAPS.MEMastodonMullvadNetNewsWireNextcloudOnlyOfficeOpen Food FactsOrganic MapsOsmAndOwnCloudProtonMailSignalSessionSimplenoteSurespotTelegramThreemasyntax highlightingVLC for iOSThe White HousewikiHowWikipediaWordPressApp StoreList of iOS gamesList of free and open-source Android applicationsList of free and open-source software packagesiPadOSIssuesOutlineiPhone6 & 6 Plus6s & 6s Plus7 & 7 Plus8 & 8 PlusXS & XS Max11 Pro & Pro Max12 & 12 Mini12 Pro & Pro Max13 & 13 Mini13 Pro & Pro Max14 & 14 Plus14 Pro & Pro Max15 & 15 Plus15 Pro & Pro Max16 & 16 Plus16 Pro & Pro MaxiPod TouchApple TVApple WatchHomePodwatchOSAirDropAirPlayAirPrintCarPlayControl CenterCrash DetectioniTunesNight ShiftNotification CenterShazamSpotlightSpringBoardVoiceOverFoundationCore AnimationHomeKitInter-App AudioWebKitGymKitHealthKitSwiftUIBundled appsCalculatorCalendarContactsFaceTimeFreeformFind MyFitnessWorkoutsHealthMindfulnessJournalMeasureMessagesPasswordsPhotosPodcastsRemindersSafariShortcutsStocksTranslateVoice MemosWalletWeatherFind My FriendsFind My iPhoneNewsstandClassroomGarageBandiMovieKeynoteNumbersBeats MusiciPhotoNike+iPodiTunes RemoteArcadeFamily SharingGame CenteriCloudiMessageiTunes ConnectiTunes StorePush NotificationsTestFlightiTunes RadioMobileMeApple silicon300-page billAntennagateBatterygateBendgateJailbreakingFairPlayiPhone historyiPhone hardwareFree and open-source softwareAlternative terms for free softwareComparison of open-source and closed-source softwareComparison of source-code-hosting facilitiesFree software project directoriesGratis versus libreLong-term supportOpen-source software developmentTimelineSoftwarepackagesBioinformaticsCodecsConfiguration managementDriversGraphicsWirelessMathematicsOffice suitesOperating systemsRoutingTelevisionVideo gamesWeb applicationsE-commerceAndroid appsCommercialFormerly proprietaryFormerly open-sourceCommunityFree software movementHistoryOpen-source-software movementEventsAdvocacyOrganisationsFree Software Movement of IndiaFree Software FoundationLicensesApacheArtisticBeerwareCreative CommonsGNU GPLGNU AGPLGNU LGPLPythonPython Software Foundation LicenseShared Source InitiativeSleepycatUnlicenseComparison of licensesContributor License AgreementCopyleftDebian Free Software GuidelinesDefinition of Free Cultural WorksFree licenseThe Free Software DefinitionThe Open Source DefinitionOpen-source licensePermissive software licensePublic domainDigital rights managementLicense proliferationMozilla software rebrandingProprietary device driversProprietary firmwareProprietary softwareSCO/Linux controversiesSoftware patentsSoftware securityTivoizationTrusted ComputingForkingGNU ManifestoMicrosoft Open Specification PromiseOpen-core modelOpen-source hardwareSource-available softwareThe Cathedral and the BazaarRevolution OS