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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. AllSidesAllSides, LLCNewsLetterboxed
  2. Ambient Weather NetworkAmbient,LLCWeatherLetterboxed
  3. Berenstain Bears' Dinosaur DigOceanhouse MediaBookLetterboxed
  4. FeedibusNicolas NeubauerNewsLetterboxed
  5. I-Ching App of ChangesBrian FitzgeraldLifestyleLetterboxed
  6. J'EATOUTCaryn McKennaFood & DrinkLetterboxed
  7. MOONMOON CALENDARWeatherLetterboxed
  8. OKN StripsThomas AlvarezMedicalLetterboxed
  9. Options AcademyBRYAN H LANGEFinanceLetterboxed
  10. ShootOff ArcheryPaul PuckettSportsLetterboxed
  11. Spirit Box RadioMichael WeberEntertainmentLetterboxed
  12. Standard Galactic AlphabetMaarten TrompperReferenceLetterboxed
  13. Thinkrolls 2AVOKIDDOEducationLetterboxed
  14. Timestamp Camera Pro玉彬 陈Photo & VideoLetterboxed
  15. iTHUMP/Toxic+Ian PidgeonEntertainmentLetterboxed
  16. AF AppAnytime Fitness, LLCHealth & FitnessLetterboxed
  17. ActionsFirstyWorkReferenceLetterboxed
  18. Coupon Generator PROValerii KotShoppingLetterboxed
  19. FACEinHOLE®Lisbon LabsPhoto & VideoLetterboxed
  20. FacemakrDadakoSocial NetworkingLetterboxed
  21. Float LKNJason SanfordNavigationLetterboxed
  22. GENKI Conjugation CardsThe Japan Times Publishing, Ltd.EducationLetterboxed
  23. InspiritedBenjamin MullerFood & DrinkLetterboxed
  24. MusicanaTDRMusicLetterboxed
  25. Phone TrackerLaurie BehrensNavigationLetterboxed
  26. RegEx LabsovioDeveloper ToolsLetterboxed
  27. Snoopy Dog HeartbeatFCP LtdMedicalLetterboxed
  28. U.S. Debt ClockAI Apps,LLCFinanceLetterboxed
  29. VionJarrod NorwellEntertainmentLetterboxed
  30. California State RoadsCoderun Technologies LtdTravelLetterboxed

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