Duoworthy
Menu

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, posture by posture, come next.

Postures

1,685 apps · Letterboxed

  1. BoundDeadpan, LLCBookLetterboxed
  2. Earn to Die 2Not DopplerGamesLetterboxed
  3. LiveATC Air RadioDave PascoeTravelLetterboxed
  4. Love, ManuelaPassion For Baking ASFood & DrinkLetterboxed
  5. Primos Hunting CallsDataRiver LLCSportsLetterboxed
  6. Scorpion Keys DeluxeRanz UrsalGamesLetterboxed
  7. Source 3Street Coder LLCDeveloper ToolsLetterboxed
  8. Stardew ValleyConcernedApeGamesLetterboxed
  9. Stylebookleft brain / right brain, LLCLifestyleLetterboxed
  10. TonalEnergy Tuner & MetronomeTonalEnergy, IncMusicLetterboxed
  11. Twenty-Four Hours a DayBookMobileBookLetterboxed
  12. e-Sword LTRick MeyersReferenceLetterboxed
  13. imo video calls and chat HDBaby PenguinSocial NetworkingLetterboxed
  14. Best Hunting TimesK SOLUTION LLCWeatherLetterboxed
  15. DowncastJamawkinaw Enterprises LLCNewsLetterboxed
  16. Goblin ToolsSkyhookProductivityLetterboxed
  17. Grand Theft AutoRockstar GamesGamesLetterboxed
  18. IncrediboxSo Far So GoodGamesLetterboxed
  19. SkyView®Terminal Eleven LLCEducationLetterboxed
  20. TabooMarmalade Game StudioGamesLetterboxed
  21. Termix ProSimon ZvaraDeveloper ToolsLetterboxed
  22. US Debt Clock .orgChrono Numeric Labs LLCFinanceLetterboxed
  23. Adult Emojis Icons Pro丽银 黄ShoppingLetterboxed
  24. B&W Photography MagazineGuild of Master Craftsman Publications LtdPhoto & VideoLetterboxed
  25. CCWWorkman Consulting LLCReferenceLetterboxed
  26. Earn to DieNot DopplerGamesLetterboxed
  27. FAR/AIM by ASAASAReferenceLetterboxed
  28. HamStudy.orgSignal StuffEducationLetterboxed
  29. Land Nav AssistantGammon Applications, LLCNavigationLetterboxed
  30. LocalDevVPNCoxson Engineering LLCDeveloper ToolsLetterboxed

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