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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. Nurse Math CalculatorHomestead Digital PublishingMedicalLetterboxed
  2. SampleScape4Pockets.comMusicLetterboxed
  3. Terminal#Vasilii ShaidullinDeveloper ToolsLetterboxed
  4. Wild Hog ProBig Shot, LLCSportsLetterboxed
  5. You Doodle ProDigital Ruby, LLCGraphics & DesignLetterboxed
  6. iRosary ClassicOpicury SoftwareReferenceLetterboxed
  7. isolved People CloudInfinisourceBusinessLetterboxed
  8. Brisbane Public TransportJOhn LyonsTravelLetterboxed
  9. Busy LandlordGladwin McClintockFinanceLetterboxed
  10. EE35 Film CameraEIGHTIVE DESIGN, Inc.Photo & VideoLetterboxed
  11. InspiresnowCanoeGraphics & DesignLetterboxed
  12. JustinGuitar Note TrainerJustin GuitarEducationLetterboxed
  13. Living Weather HD Live +Voros InnovationWeatherLetterboxed
  14. PreOPeter AlldayShoppingLetterboxed
  15. SSTP ConnectDomosekai LimitedUtilitiesLetterboxed
  16. Serving Sizer recipe converterCreative AlgorithmsFood & DrinkLetterboxed
  17. ShotstopperAppwell Studio ASSportsLetterboxed
  18. Slovak TV+KantaNewsLetterboxed
  19. SoloTrio Software LtdMusicLetterboxed
  20. THE BLACK ABOPIERRE CLERY ABOYA BAYAHealth & FitnessLetterboxed
  21. Telegram Channel Hub Group AppStepa Mobile FZE LLCReferenceLetterboxed
  22. WordWeb Audio DictionaryAntony LewisReferenceLetterboxed
  23. World Tides 2026Brainware LLCNavigationLetterboxed
  24. WorldCard MobilePenpower Technology Ltd.BusinessLetterboxed
  25. XP4NBram BosPhoto & VideoLetterboxed
  26. AsketchAndrew KernGraphics & DesignLetterboxed
  27. Berenstain BearsOceanhouse MediaBookLetterboxed
  28. Cash AdvanceLiberis Sweden ABFinanceLetterboxed
  29. Doppler Radar Map Live ProVoros InnovationWeatherLetterboxed
  30. Gun Vault ToolsWorkman Consulting LLCUtilitiesLetterboxed

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