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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. My Kitchen CalculatorMobotronics LLCFood & DrinkLetterboxed
  2. NewsTap (Usenet Newsreader)Alexander ClaussNewsLetterboxed
  3. Outdoor Photography MagazineGuild of Master Craftsman Publications LtdTravelLetterboxed
  4. Papa's Freezeria To Go!Flipline StudiosGamesLetterboxed
  5. RavitEnhancientLifestyleLetterboxed
  6. SiddurChabad.org Jewish AppsBookLetterboxed
  7. Sporty's E6B Flight ComputerSporty's Pilot ShopNavigationLetterboxed
  8. Termux SuiteDYLAN JOHNSDeveloper ToolsLetterboxed
  9. Wise Words for MomsShepherd Press AppsReferenceLetterboxed
  10. WorkOutDoorsCCS LtdHealth & FitnessLetterboxed
  11. healoweClinicalWorks LLCMedicalLetterboxed
  12. iFakeTien NguyenSocial NetworkingLetterboxed
  13. ArtScroll Smart Siddur סדורArtScroll Mesorah PublicationsBookLetterboxed
  14. Audiobooks HQ +Inkstone Software, Inc.BookLetterboxed
  15. Blitzer.de PROEifrig MediaNavigationLetterboxed
  16. Essential Anatomy 53D4Medical from ElsevierMedicalLetterboxed
  17. FORScan LiteAleksei SavinUtilitiesLetterboxed
  18. Furniture & CabinetmakingGuild of Master Craftsman Publications LtdReferenceLetterboxed
  19. Inspect BrowserParallax Dynamics Inc.Developer ToolsLetterboxed
  20. MiniPets FinderMalwina KochmanLifestyleLetterboxed
  21. MyEndeavorEndeavor HealthMedicalLetterboxed
  22. Oh She GlowsGlo Bakery CorporationFood & DrinkLetterboxed
  23. PawWireThe Wires Platforms, Inc.ShoppingLetterboxed
  24. Ruby 2.0-run code,pro小文 黄Developer ToolsLetterboxed
  25. ShooterKennedy Development Group, LLCSportsLetterboxed
  26. SlushIQMichael SturgisFood & DrinkLetterboxed
  27. Stack the States®Freecloud Design, Inc.EducationLetterboxed
  28. Streets of Rage 4PlaydigiousGamesLetterboxed
  29. TapeACall ProMosaic S.r.l.BusinessLetterboxed
  30. TeamSpeak 3TeamSpeak Systems IncSocial NetworkingLetterboxed

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