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.
1,685 apps · Letterboxed
Necrophonicchris rogersUtilitiesLetterboxed
PDG PROmote 2026+ForceReadiness.comEducationLetterboxed
Purple PlaceSemyon PopovGamesLetterboxed
RIP VIPDavid RitchieNewsLetterboxed
Relax For A MinuteJonah CalvoGraphics & DesignLetterboxed
Thailand Lottery ตรวจลอตเตอรี่Digital Insider Company LimitedNewsLetterboxed
The Monster at the End...Sesame Workshop (Apps)BookLetterboxed
TheodoliteCraig HunterNavigationLetterboxed
WinFabpasquale dipaolaBusinessLetterboxed
Wine MapsJonathan LordFood & DrinkLetterboxed
Woodcarving MagazineGuild of Master Craftsman Publications LtdReferenceLetterboxed
APPatientModernizing Medicine, Inc.MedicalLetterboxed
All Radio ProALL RADIO DEVELOPMENT TECHNOLOGY JOINT STOCK COMPANYNewsLetterboxed
Bloons TD 5Ninja KiwiGamesLetterboxed
DRR RescueTom PENDLEYReferenceLetterboxed
EchoReplay Software LimitedDeveloper ToolsLetterboxed
HP 12c Financial CalculatorMORAVIA Consulting, spol. s r.o.FinanceLetterboxed
Image Resizer Prokitaek kimShoppingLetterboxed
Knitting MagazineGuild of Master Craftsman Publications LtdLifestyleLetterboxed
NavRulesMintaka InnovationsNavigationLetterboxed
NjectKeaton Benning, LLCMedicalLetterboxed
Radar GO-XMOR TOSBAA MOBIL COZUMLER ANONIMNavigationLetterboxed
Stack the Countries®Freecloud Design, Inc.EducationLetterboxed
StbEmuTV (Pro)Junaid MuhammadEntertainmentLetterboxed
Stop Motion Studio ProCATEATER, LLCPhoto & VideoLetterboxed
Tenutomusictheory.netMusicLetterboxed
Ugly's Electrical ReferencesInformed PublishingProductivityLetterboxed
WigglyPaint骏骁 马Graphics & DesignLetterboxed
ABA WizardTYSM Technologies, LLCEducationLetterboxed
Animated Knots by GrogGrog LLCReferenceLetterboxed
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