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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. Nomo WidgetsParker StechHealth & FitnessLetterboxed
  2. Presidential & US Election ProFRIENDSAPP LISTINGMagazines & NewspapersLetterboxed
  3. Quick2257Lawrence WaltersBusinessLetterboxed
  4. Snow Day CalculatorDavid SukhinWeatherLetterboxed
  5. SqueezyLiving With LtdMedicalLetterboxed
  6. Talking Emoji Pro for Texting智敏 黎ShoppingLetterboxed
  7. The Binding of IsaacNicalis, Inc.GamesLetterboxed
  8. Weather UndergroundWeather Underground, LLCWeatherLetterboxed
  9. 花皮燕芳 罗Social NetworkingLetterboxed
  10. AA Big Book AppDean HuffBookLetterboxed
  11. Baby Led Weaning RecipesNatalie PeallLifestyleLetterboxed
  12. BoondockingWilliam ModesittTravelLetterboxed
  13. CE5 ContactSirius Technology Advanced ResearchEducationLetterboxed
  14. Clock YourselfNext Step Allied HealthHealth & FitnessLetterboxed
  15. DashCommandAuto Meter Products, Inc.SportsLetterboxed
  16. FERS+CSRS Retirement EstimatorISD Consulting, IncFinanceLetterboxed
  17. ITI CalcCalculated IndustriesBusinessLetterboxed
  18. Kali StrikeDYLAN JOHNSDeveloper ToolsLetterboxed
  19. LineLearnerPeter AlldayProductivityLetterboxed
  20. Little BeanLittle Bean App LLCHealth & FitnessLetterboxed
  21. Navakatha PothaSIMATO VAS SOLUTIONS (PRIVATE) LIMITEDMagazines & NewspapersLetterboxed
  22. Palm Springs Modernism TourDesert Publications, Inc.TravelLetterboxed
  23. Rule MasterUniversal Queue LLCNavigationLetterboxed
  24. Self Help Classics .TEDRA SOFT SRLBookLetterboxed
  25. SpeedLight ViewerOleg BorodkinSocial NetworkingLetterboxed
  26. SpongeBob SquarePantsTHQ Nordic Mobile GmbHGamesLetterboxed
  27. Stickers for WeChatKISSAPP, S.L.Social NetworkingLetterboxed
  28. Tarot!The Fool's Dog, LLCEntertainmentLetterboxed
  29. ThemeArtHypernova LimitedGraphics & DesignLetterboxed
  30. VizRef LiteStudio PixanohGraphics & DesignLetterboxed

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