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.
2,069 apps · Letterboxed
Guitar Tuner!Peter DeelstraMusicLetterboxed
HIXGAMEDIA B.V.GamesLetterboxed
Learn Colors for ToddlersKevin FichmanEducationLetterboxed
Little Builders for KidsFox and Sheep GmbHEducationLetterboxed
Low Poly SynthAlexander ZolotovMusicLetterboxed
MCM EventsDilltree IncSportsLetterboxed
MetaTimer Timeboxing for ADHDOleh PavlivProductivityLetterboxed
MiyuRoman SavchynProductivityLetterboxed
NecrometerMinh Nhat DangUtilitiesLetterboxed
OmniNewsNaidubabu VanamNewsLetterboxed
Poker Money TrackerJames CheseboroughGamesLetterboxed
RaceJoyTriPerta LLCHealth & FitnessLetterboxed
Realtime AltimeterZhenlai XiaTravelLetterboxed
Resident Evil 4CAPCOMGamesLetterboxed
Second TempleImmersive LLCEducationLetterboxed
Sight WordsRed Five LLCEducationLetterboxed
SimpleFuel Mileage TrackerJohn KalinowskyUtilitiesLetterboxed
SkellyProkoEducationLetterboxed
Ski SafariYodo1, LTDGamesLetterboxed
SpellBoardPalaSoftware Inc.EducationLetterboxed
Swift Interactive Tutorials发展 李EducationLetterboxed
Talking ABC...HEY CLAYEducationLetterboxed
Tile BlastLoop Games Oyun Teknolojileri Anonim SirketiGamesLetterboxed
Tot PocketThe IconfactoryProductivityLetterboxed
Unfilth Your HabitatUfYH, LLCProductivityLetterboxed
Говорящая АЗБУКАHEY CLAYEducationLetterboxed
点淘-淘宝直播官方APPZhejiang Diantao HaoWu Network Co., Ltd.ShoppingLetterboxed
电子税务局State Administration of TaxationFinanceLetterboxed
精准定位-精准指南针&运动轨迹&户外探险仪表盘植翰 林ProductivityLetterboxed
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