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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. iAllowance (Chores Allowances)James SpencerFinanceLetterboxed
  2. iIndicators菁晶 王FinanceLetterboxed
  3. zFont 3Soua ZerroukiDeveloper ToolsLetterboxed
  4. 3D modelingCore five, Inc.Graphics & DesignLetterboxed
  5. Anesthesia 101Crystal Clear SolutionsMedicalLetterboxed
  6. CleverbotAwarelike Intelligence LimitedEntertainmentLetterboxed
  7. High TideLW Brands, LLCWeatherLetterboxed
  8. Money Monitor Pro倩 赵FinanceLetterboxed
  9. MultiShortsMu Shahil A RashidEntertainmentLetterboxed
  10. Squam Lake MapLioneye Aerials, LLCNavigationLetterboxed
  11. StreameastElizabeth WalkerReferenceLetterboxed
  12. Tehilim תהלים Tehillim PsalmsRustyBrick, Inc.ReferenceLetterboxed
  13. The NinthJason StoreyBookLetterboxed
  14. Volume BoosterNguye Thi HienMusicLetterboxed
  15. WebCommRaphael OdermattSocial NetworkingLetterboxed
  16. Word Among Us Mass EditionThe Word Among UsMagazines & NewspapersLetterboxed
  17. XAir Monitor MixerEric TetzMusicLetterboxed
  18. iSnipeWeb DiligenceSportsLetterboxed
  19. Big DaywhatisidLifestyleLetterboxed
  20. DiscountShoppingCalculatorEduardo SamourShoppingLetterboxed
  21. Http Traffic pro岚 赵Developer ToolsLetterboxed
  22. Payoff宁 梅FinanceLetterboxed
  23. Radiology CoreLieu DuongMedicalLetterboxed
  24. Remote control for LGOz ShabbatthUtilitiesLetterboxed
  25. AnyFontEvo Tec Labs @ Pepperbit OnlineUtilitiesLetterboxed
  26. Auto Repair InvoiceManu GuptaBusinessLetterboxed
  27. Dr. Seuss's ABCOceanhouse MediaBookLetterboxed
  28. Great Smoky Mountains GyPSyGypsy Guide GPS LLCTravelLetterboxed
  29. Lua IDE盼军 崔Developer ToolsLetterboxed
  30. Radio for Chicago BearsSantiago LEONSportsLetterboxed

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