Which apps work on iPhone Duo?

Yes. Apps already on the App Store open on iPhone Duo. On the outer display an app that hasn't been updated looks as it does on any iPhone. On the inner display it sits in an iPhone-shaped window with black borders until its developer rebuilds it with the iOS 27 or iOS 27.1 SDK.

Netflix, Detail, Slack, Zoom, edjing Mix, SmartGym, Things 3, WPS Office, Deck-Man, MLB, Retrocade, Sneaky Sasquatch, Tide Guide, Tiimo, Weibo, Fantastical, Prime Video, Craft, Airmail, American Airlines, Asphalt Legends, BAND, Bear, Edits, Flighty, KakaoPage, KakaoTalk, Lowe's, LTK, Moises, NAVER SERIES, Next Shot, Notewise, NYT Cooking, OpenTable, PGA Tour, Salesforce, Shop, United Airlines, VLLO, WEBTOON, Yelp, Sky Guide, Xmind, Amap, iQIYI, Taobao, Xiaohongshu, Instagram, Lyft, Paramount+, Tripsy, Snapshots: Instant Film Camera, Blankie, RectoVerso: Flashcards, Solarday: Plan Days Better, Load Bearing, Clap: Film Slate, PixoMap: Trip Maps from Photos, JoyJar, Penjo: Pencil Journal, Planner, Meditation Timer - Zenitizer, Spritz: AI Cocktail Recipes, Flit - Easy Feed, Facing Pages, Medo e Delírio, Please Don't Rain, additem.to, Faro, Find Objects: Hidden & Diff, Paint Me: Color By Number, Questionable Loot, RepCount, AskZine, Marquee for Apple Music, Megu: SI Closet & Planner, Paper & Grain, Prismark, Sleep Log AI : Coach & Tracker, TabForge: Code Keyboard, Docker Manager GUI - WhaleDeck, Daylish - Visual Schedule, Fuel Consumption – DriveDex, Keep It Shut, Scoopy: News Reader and Icebox, SubManager: Subscriptions, Walk Up Songs, DexFold, Lumecast: Live Streaming, Starlift: Falling Block Puzzle, Tapete: 2 Player Board Games, Blackbox, KeepCount, FleetFold, BrainDrain: Brain Dump Journal, AtlasDays: Country Day Tracker, Cleaver Kitchen: Cooking App, Tasks - To Do Lists & Reminder, Auralog: Migraine Pain Tracker, Chalk & Sum, Fretalus, Little Memory, Pocket Midway, Poly-Glot AI Workspace, Shell Drop, Solitaire 1380, SpellGrid Roguelite, Word Vice, Calendaria, Fold & Squish: Butterfly Paint, Lumessa, Smart Tasks - Lists Made Easy, Twick: Watch Twitch & Kick, WaffleKing, Bulletin: RSS News Reader, Marbles Unhinged: Folding Maze, Photo Scout by Cascable, Calc Pro - The Best Calculator, Metronome ∞, Serve, hora Calendar, Orisuji, Nihongo, White Noise Sounds - Nap Noise, Buildhorn: CI/CD Alerts, Nunch - Calorie Tracker, Chiptune, Shadow Court Detective, Sticky Widgets, VariAlarm: Schedule Master, Y-Pod, Momego, Delta, Flicit: Movie Diary & Tickets, Heart One: Health Log with Dog, Porta Nubi: Immersive Puzzles, PodMelody, Red Light For Your Eyes, KeyboardKit, ReadAloud: Text to Speech PDF, Brink: Podcast Player, Dark Noise, Habit & Goal Tracker GridKit, Habit Tracker: Habitsy, Headroom: Remote Desktop, Hi Piano: Learn & Play Easy, Hollywoodland: Film, TV & Crew, MetaTimer Timeboxing for ADHD, OmniNews, PacerMind, RoomGenie: AI Room Design, Television Time, Tiny Harvest: Cozy Farming, Vibe42, Writer for Markdown, Appstead: App Sales & Reports, Halo - Personal AI, Sweepr: Swipe Photo Cleaner, Zaraz Jadę, Sessionography: Jazz Explorer, WebIPTV: IPTV, M3U & Xtream, Zoomie: Dog Activity Tracker, fornews.ai, KeepDates, Push Push, Ride Radar, Scoundrel Solitaire, SuperPlanner, Topo, Vertically Verse, Time Player Cassette, Ready Time, FoldCheck: Foldable Inspector, NextBus NUS, Nurie: Photo Coloring Book, Paint & Fold, Peekaboard: 2 Player Game, Chonky Corgo: Walking RPG, Cube: 3x3 Cube Solver, Inkblotter, Jigsaw: Photo Puzzle Maker, JollyTango: Audio Travel Guide, Medicalarm - Pill Reminder, PXS External Screen Desktop, Water Tracker - Quenched, SecChain, Ship Cap'n Crew, ThinkScribe, HanziAgain, MySensor², Clipsana, The Recipe Box, LinkShell, Peak, JEB, AirScrobble, Asymmetric: The Game, Ben Journal Digital Diary, BetterAppIcons, Calmaria, CombatChess, Conflux - Video Player, COOKY, GeoKiks, Glassy Desk, Houseshare AI: Rentals & Bills, Lanely Countdown, MydenFocus, one sec | screen time + focus, OperaLibre, Payday - Income & Expenses, Plateknow: Photo Food Diary, Still: for Audiobookshelf, Who Goes - Party Games, Ambly, DayCast: Plan + Reflect, Deliveries: a package tracker, EchoPod, Foldink: Cozy Paper Puzzles, Gigs: Concert Tracker, Habit Tracker - HabitPath, Inventory & Sales: Inventury, Jabby GLP-1 Medication Tracker, Planetary Hours by Planetaro, RentalHelm, SimpleFuel Mileage Tracker, SnapVinyl, SolarWatch, UNCHIKUN: Poop Log & AI Health, Velora: Skincare Routine, aside · Berlin, Asobi: Remote Play, Checkbook - Bills to Budget, Catholic DeVice: App Blocker, CodeMate: Code Editor & Viewer, Flyby – Drone Planner, Greeting Tracker, Letters, MTG Scanner - Lion's Eye, NEKO, PDX Transit (Next Generation), Rivlo, Share Server, markdown notes - Smolpad, SpendLists: Income Tracker, Unplugged: Battery Monitor, Aida, Avionics Buddy, Bandwidth Monitor, Benkyo Box, Hour by Hour, iQ, shelff, Xarra, ComicFlow - CBR & CBZ to PDF, 街巡-まちめぐ-, TVPods, Countdown2Binge, Ruply, Dystopia Camera − 1000 Years, Grow: Health & Fitness, Meowcast, Snapling: Digital Photo Albums, DoMarks, Intode - Mobile SSH IDE, Kept: Warranty Tracker, Pocket Greek Dictionary, RetroCam : Live Vintage Camera, DoseKeeper: Medication Manager, Meshing, Profile Bud - All Your Handles, PCalc, BiblioFuse Reader & Compress, CleanAirNav Outside, My Links, Nonogame, Parchment: Agenda & Daily Note, SRT Subtitle Toolbox Mobile, Flutter Tech Summit, Moku: Goal Tracker, Next3Trains, Pipilo, and Shoobie³: Water Temp & Surf are confirmed by Apple or checked by FoldHunt's editor. 757 more apps and games are listed on the word of their developers, most with a screenshot or video of the iPhone Duo layout.

As of October 8, 2026, we have found no announcement from 111 popular apps for iPhone Duo, including Alipay, Baidu Maps, Bilibili, DingTalk, and Douyin and 106 others. That can change at any time, and each app's page is updated when it does.

By hand, against each developer's own announcements, release notes and posts, and against Apple's. Each app's page shows the date it was last checked. If you've seen an announcement we haven't, email hello@foldhunt.com.