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Which apps work on the iPhone Duo

6,561 apps, checked against Apple's App Store data every day. Hand tests on a real Duo, pose by pose, come next.

Poses

1,685 apps · Letterboxed

  1. Amharic Bible 81 BooksHaileslassie Lilay DesalegnBookLetterboxed
  2. BluetalkFiveSheep OUSocial NetworkingLetterboxed
  3. Daily Relics北京上下四方文化有限公司Magazines & NewspapersLetterboxed
  4. Gallerie WallpapersSibelius Studios LLCGraphics & DesignLetterboxed
  5. Himnario LLDMBerea InternacionalEntertainmentLetterboxed
  6. ICU Trials by ClinCalcClinCalc LLCMedicalLetterboxed
  7. LEO GeomatchCalvin YouReferenceLetterboxed
  8. Mr. Potato HeadPlayDate DigitalBookLetterboxed
  9. NavigatorLaurie DavisNavigationLetterboxed
  10. Next Batter UpJoshua HartSportsLetterboxed
  11. PB PlaycodeDependent Software IncorporatedSportsLetterboxed
  12. Papa's Pancakeria To Go!Flipline StudiosGamesLetterboxed
  13. Progressive Alarm ClockSpotlight Six Software LLCHealth & FitnessLetterboxed
  14. RatioRuhlman Enterprises, Inc.Food & DrinkLetterboxed
  15. Skool CommunitiesSkool.com, Inc.Social NetworkingLetterboxed
  16. StitchSketchMozusystems, LLCGraphics & DesignLetterboxed
  17. Symbol Pad Pro山 钟Social NetworkingLetterboxed
  18. TechApp for BMWVladimir SusoykinShoppingLetterboxed
  19. Translate VoicemyLanguageTravelLetterboxed
  20. UserscriptsJustin WasackDeveloper ToolsLetterboxed
  21. BuddhifyCELESTIAN GOLDEN APPSHealth & FitnessLetterboxed
  22. Client for OpenCodeDusan KosirDeveloper ToolsLetterboxed
  23. Emoji 3 PROEmoji Apps GmbHShoppingLetterboxed
  24. FEMAFederal Emergency Management Agency (FEMA)WeatherLetterboxed
  25. HarbourKacper KaczmarzykDeveloper ToolsLetterboxed
  26. Lost Person BehaviordbS ProductionsReferenceLetterboxed
  27. Maple MagazinePressPad Sp. z o.o.Magazines & NewspapersLetterboxed
  28. Mextures Photo EditorMEREK DAVIS COM, LLCPhoto & VideoLetterboxed
  29. Real-time GPS Location SharingVan Hoa NguyenNavigationLetterboxed
  30. SCRABBLE DictionaryMerriam-Webster, Inc.ReferenceLetterboxed

Automatic check, daily · updated

As of Nov 10, 2026, 27 of the top 100 free iPhone apps have Apple's iPhone Duo badge. The status of every app here comes from Apple's App Store data, read again every day. How an app behaves in laptop, book or tent mode takes a hand test on a real Duo; none has been tested yet. How we test