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Which apps work on the iPhone Duo

7,251 apps, checked against Apple's App Store data every day. Hand tests on a real Duo, pose by pose, come next.

Poses

2,069 apps · Letterboxed

  1. SunLync Mobile ManagerSunLyncBusinessLetterboxed
  2. UTM Grid Ref CompassMike IrvingNavigationLetterboxed
  3. Voice TestZeljen TrpovskiMedicalLetterboxed
  4. WAFiresP4G Pty LtdNewsLetterboxed
  5. Waffle House OrderingWaffle HouseFood & DrinkLetterboxed
  6. Water Eject ‒ Speaker CleanerTiny Boom Ltd.MusicLetterboxed
  7. Wind CompassMaple Media Apps, LLCWeatherLetterboxed
  8. Wind forecast for WindgurusFlytomapWeatherLetterboxed
  9. ZkBa树铎 许ShoppingLetterboxed
  10. iRead-3 Practice AppWilliam PfaffenbergerEducationLetterboxed
  11. Collins Spanish-EnglishUltralingua, Inc.ReferenceLetterboxed
  12. Come Clean for SchoolOceanhouse MediaBookLetterboxed
  13. Face ModelTomi NevalainenGraphics & DesignLetterboxed
  14. Mobile HitBTCYuri StaloverovFinanceLetterboxed
  15. Modern ClassicsDoudoroff LLCFood & DrinkLetterboxed
  16. Name-daysBitfield ABSocial NetworkingLetterboxed
  17. NanTxThinking, Inc.Developer ToolsLetterboxed
  18. Nezha MobileArgsment LimitedDeveloper ToolsLetterboxed
  19. PriceScoutKaran KohliShoppingLetterboxed
  20. The BriefLuigi MazzeoNewsLetterboxed
  21. Transcend Theorychris rogersUtilitiesLetterboxed
  22. Worlds smallest violin ™Nikola MilicEntertainmentLetterboxed
  23. BencaoeXebecheMedicalLetterboxed
  24. Color GenieAskOkey IncLifestyleLetterboxed
  25. Explore Daniel's NeighborhoodPBS KIDSEducationLetterboxed
  26. FoturaThanh Nguyen DuyPhoto & VideoLetterboxed
  27. HAMR CompanionJohn GravesHealth & FitnessLetterboxed
  28. ImagezMarc HofmannLifestyleLetterboxed
  29. Jot Shopping ListJonathan GillmanShoppingLetterboxed
  30. Metsihafe KidaseGetahun AyalewBookLetterboxed

Automatic check, daily · updated

As of Nov 11, 2026, 25 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