Demos, concepts and experiments from the people building for iPhone Duo, collected from X and around the web. We add new ones as they're posted.
557 ideas from 505 creatorsUpdated Oct 7, 2026
Duo-Man offers the complete walkman experience on the iPhone Duo. Open the Duo to pick and 'insert' the cassette, Close the Duo to start listening. Yes, I actually recorded the button clicks and static noise from a real Walkman! It was fun making this at @bitrig hacks today.
built a solar system in @rork that opens like a book on iPhone Duo
Rork@rorkiPhone Duo is now in Rork
Build apps for both screens and test them on a live Duo in 3D simulator.
Hey Apple, Amazon, Google, or anybody out there, Please make this app for the iPhone Duo, and I'll be your customer for life. Made with Claude Opus 5.5. Piano: Salamander Grand Piano by Alexander Holm · CC-BY 3.0
How the f*ck do I build and design for the iPhone Duo? That was my initial thought when I saw all the different screen states. But as I started testing it out, I realized I was overcomplicating the design. I didn’t need to create a different experience for every screen. It was… Show more
I couldn’t wait 🥲 Designed a logistics app for the iPhone Duo across: — Outer display: portrait — Outer display: landscape — Inner display: fully open Adaptive UX is hereeeeee 🤭
Worked on a record app for DJs who want to record their set. Here it is on the iPhone Duo.
I’ve been experimenting with Astra and applying a few changes while learning how to build an app for the iPhone Duo, so far everything is working perfectly and the process has been really interesting
Apple announced iPhone Duo. I designed a trip for it. Closed: you are on the way to Montreal. Open: add a stop, and a drive becomes a journey. Same trip. Two jobs. That is the exciting part. This is not responsive design. It is inventing the product twice.
Aeron | Private Jet Booking App A premium, seamless booking experience designed for iPhone Duo. Clean UI, refined details, effortless booking. Designed by itcroc LLC. #UIDesign #UXDesign #ProductDesign
Opened up, the Apple #Duo reminded me of a 90s clamshell PDA more than any phone I have designed for, so my 1-bit Mac portfolio now runs on one. On a foldable, the layout depends on the hinge angle. Closed, half open and fully open each want a different screen, and I think that… Show more
not bad, AirScrobble is looking nice on the inner and outer display of the iPhone Duo. I'll just try moving the Continuous Listening toggle (∞) into the toolbar
Built for what’s next. A fintech experience designed specifically for iPhone Duo — adapting beautifully across its dual-screen canvas and every orientation. #Airzon #iPhoneDuo #Fintech #UIDesign #UXDesign #ProductDesign #iOSDesign
aswini vundavalli and Prithvi Sai's Bitrig Hacks app for meetings. Closed, the cover records with a timer. Open flat, the slide, captured frames and live transcript sit beside suggested notes to keep or drop, and later a summary.
Asymmetric for iPhone Duo. You control two characters that always move opposite to each other. If the right one goes up, the left one goes down, etc. Your goal is to use the environment to get both to the goal. On iPhone Duo, touch a side to choose who takes the lead.
Aye Chief, another calorie tracking app.. but with spunk! The differentiator? Everything is done by talking to the Chief, and be warned, he has opinions!!
If you’re brave enough to hand your kid an iPhone Duo... we at least got game-compatibility part covered. All 6 distinct layouts and orientations on iPhone Duo are supported for Bella and Pan(™). apps.apple.com/us/app/bella-a…
Hello, BetterAppIcons 27.2 💙 Designed for iPhone Duo 🦋 #SwiftUI #iOS27
MING@1998designCool animation in Apple Device Hub app 🤩 #macOS27
Hi, I hope you can have a look at my BlogWarp app, currently in beta. iOS/macOS versions available, and the iPhone Duo version is only waiting for a real device for proper testing. Thank's. @getblogwarp blogwarp.com
The Book of Answers 📖 Tap the cover, ask your question, then unfold your iPhone Duo. Your answer is waiting inside. Left page: everything you’ve asked Right page: your answer.… Show more
📲🆕 ¿Os vais a gastar los más de dos mil pavos que vale el nuevo iPhone Duo? Pues la app CC estará lista desde el Día 1. 😏 Fuera bromas: hemos aprovechado que Apple ya liberó herramientas. Todo listo para iOS 27.1. 🤖 ADEMÁS: tablets Android listas. Esta noche en Play Store.
Calmaria.app is almost ready to ship! Looking good on the iPhone Duo in pretty much every orientation. Check it out and let me know what you think!
by Prince Gadia
Prince Gadia and Andy Phuong's Bitrig Hacks game. Open, a knife hangs at the crease over a 3D apple and a target split like 60·40. Fold the phone to cut; the cover asks you to unfold, and both pieces are scored.
iOS devs: test Duo multitasking while partially folded / fully open! @click2track app's two pane layout worked full screen, then got squeezed into one half beside Safari. Fix: adapt to the app’s actual window space. A narrow window gets one scrolling form. Before → after 👇
Close it. Open it. Turn it. Cognito for iPhone Duo: open it and Home spreads across the inner display. Turn it upright and your decks sit in two columns. Start a review on the outer display, open it mid-card, and you're on the same card. #iPhoneDuo
The only way to play chess in 2026 and beyond is to fight it out on iPhone Duo. CombatChess will be supported day 1 on launch. Flip the phone open for a full scale fight, win the board on the battlefield. Download today : apps.apple.com/us/app/combatc…
I'm 41 and my favorite TV show of all time is Star Trek: Next Generation. LCARS is the UI created for the computer screens in the show and I've always wanted it for the iPhone. Say hello to Computer for iPhone Duo. claude.ai/artifact/VHTTc…
Xcode27.1がきていたので早速iPhoneDuoの感じをみてみた📱 セッション動画などを見てある程度予想していた通り、OS標準的な仕組みやコンポーネントをベースに設計していないとiPhone、Duo、iPadをまたいだアプリのレイアウト対応はかなり大変になると思う😇 あと半開きはアプリの個性の出しどころ🍺
Opus 5.5 几乎 one-shot 帮我把 Cuto app 完成了 iPhone duo 的基础适配，效果很不错，令人惊叹 一行简单的Prompt: 查看 Apple 官方文档，社区资源（如weekly.fatbobman.com/p/fatbobmans-s…，github.com/mirzaaghazadeh…），分析并实现我们这个 app 的各个页面应该如何适配 iPhone duo
A few small tweaks adopting the new ArrangementView and I feel like the iPhone Duo experience for @DarkNoiseApp is pretty decent already? Obviously will have to get more in the weeds on everything but it's a good start for _very_ little work!
Some UI interactions I’ve been working on recently for the iPhone Duo.
Updated my time travel app Déjà Vu — which lets you hold up old photos exactly where they were taken — for iPhone Duo. Unfold to hold up a large-format photo you can compare with the present day. (Of course was inspired by @viditb’s Duo-Man.)
Prototyping for @Apple Pay on iPhone Duo, a Duo Wallet design where all your payment cards and ID cards live together in one place, designed around fluid, two-screen interactions that make paying, verifying, and checking in feel seamless.
DuoDisc. A virtual CD player for iPhone Duo. Available 23.10. duodisc.app #iPhoneDuo #iOS #Apple #discman #app
iPhone Duo just dropped. FabricLoop is already native for it — fold it, it's your phone board. Open it, it's a full 3-column Kanban. Monday. Asana. Slack. Jira. Teams. Are you ready? We are.
Prepping @getfinny so it's ready for the iPhone Duo launch next month. Soooo fun seeing the app adapted to this new layout!
𝗖𝗮𝗻 𝘄𝗲 𝘁𝗮𝗹𝗸 𝗮𝗯𝗼𝘂𝘁 𝘁𝗵𝗲 𝗶𝗣𝗵𝗼𝗻𝗲 𝗗𝘂𝗼? My feed's been all about it so I designed a fintech app concept for it. What would you design differently?
Foldables give apps way more screen - most fitness apps still ignore it. Designed a dark, data-dense fitness UI that actually uses the extra space. #uidesign #figma #appdesign #iphoneduo
Created my first iPhone Duo app for learning French! Been pretty interesting trying to build responsive like a website when it's unfolded. #iPhoneDuo #BuildInPublic #OpenSource
"Designing for iPhone Duo feels like you are designing for more than one device. It means thinking about every possible way someone might hold, fold, or turn their phone... and I'm having fun with this sort of UI/UX challenge." our head (and body) of design @andrej_mihelic
GeoKiks, designed for iPhone Duo. Feel the experience. See more, side by side. geokiks.com @Apple #iphoneduo @johnternus
Adding support for GlassyDesk (bunn.dev/glassydesk/) to iPhone Duo. This is going to be fun!
A first look at Habits on iPhone Duo! The app uses NavigationSplitView and ToolbarItem throughout so it mostly works right off the bat, some small things to improve of course.
Surprisingly, porting a Flutter app to iPhone Duo isn't the worst thing I've forced @claudeai to do Send my regards to UIKit
Houseshare running on Apple iPhone Duo 4 I have some ideas I'll be cooking up over the next few weeks..
Building for iPhone Duo is fun! Just found a new use for the hinge, let's crack some nuts (sound on 🔊) github.com/valentinperign…
きんのじさん考案「かんたんレジ」 iPhone Duoでも動かせるようにビルドまでできました。 ソース配布だけならすぐできますが、、、ワイもそろそろアップルデベロッパー登録してアプリ公開しようかしら。
きんのじ@v9938はや〜いヽ(・∀・)
一点だけ違いがあって、オペ側と空間を開けたかったので、お客様のアイテム表示は下詰なんです。Any of my poker degen friends looking to buy an iPhone Duo? Left Pocket will have Duo support from DAY ONE. More coming… 👀
Readying iPhone Duo support for @liftr_app with the goal of making it the best workout and fitness experience on this new device
The next evolution of LOOXY is almost here. 🚀 We're bringing a fully optimized Wardrobe experience to the iPhone Duo. What do you think of the new layout? 👇
A little glimpse of Lume on iPhone Duo. Still cooking, more soon. 👀 #Lume #iPhoneDuo
Ishita Bhadra's Bitrig Hacks entry. Closed, the cover scans and grades a worksheet. Half-open like a book or a laptop, the work sits on one half and an AI tutor's margin notes on the other; tented, the cover runs a study timer.
Started adding iPhone Duo support to Maxine but I can't seem to figure out how I can keep this horizontal piece of scrolling content from extending under the tab bar. I'm not ignoring any safe areas or anything ¯\_(ツ)_/¯
Not sure - is that the right design decision for Open and Book poses on iPhone Duo? #Apple #iPhoneDuo
Meowcast - iPhone Duo App Coming soon📱📱💻🐈🐈⬛⛅️ 곧이다 냥씨 아이폰 듀오!!!
Working on a retro music player for iPhone Duo, still a work in progress… #buildinpublic
Have you started designing for the iPhone Duo? Asked Sonnet 5.5 to mockup our next UI design for Mitamaton on @paper and I like how it's going.
Mithka 1.5.5 发布, 修复了一些问题, 适配了 iPhone Duo apps.apple.com/app/mithka/id6… github & changelog: github.com/iebb/mithka
🚧 MODA Adapted for iPhone Duo
Fuego.UI🔥👽@ink_kingsleyBeauty in black
Good morning ☀
I wanted to see how a multicurrency app would behave on the new iPhone Duo. A new form factor is a good way to test how flexible an experience really is. I already had the mobile experience designed, so instead of simply stretching it into the larger screen, I started asking… Show more
Bankolé@adesinabankyExploring the iPhone Duo.
A music player concept for the iPhone Duo. Folded: glanceable now playing. Unfolded: full vinyl player + trending charts 🎧 Made with Figma. Mockup tool by @NotoriousUSB ⚡️ #UXDesign #Figma
Your app is already 99% optimised for the iPhone Duo if you had already optimised it for an iPad. You just have to adjust the things on the top-right corner a bit as it overlaps with the notch & status bar now.
Developing my Nashville Trainer app for iPhone Duo! Can’t wait for all the cool new features of this device! Download it today on any other iPhone! apps.apple.com/us/app/nashvil… #iPhoneDuo #xcodebeta
Everyone is talking about iPhone Duo, so I had to see what Ninety-Nine would look like on it 👀 Stickman Battle just landed in the latest update. Would you play this on an iPhone Duo? #iPhoneDuo
In the next version of Noah, iPhone Duo will be supported! We believe rich people should be able to spend their Bitcoin so we now support the $2000 iPhone.
iPhone Duo への対応を進めています✨ (2.2.0 でリリース予定) デバイスのさまざまなポーズで、ユーザーが何を見て、どんな操作をするのかを考えながら、それぞれのレイアウトを設計しています。 まだまだ工夫できそうなところがあって、考えるのが楽しいです！
Has anyone else run into this issue with SwiftUI's NavigationSplitView on the iPhone Duo? The navigation bar's back button inexplicably disappears when the split view collapses into a navigation stack, only reappearing when an interactive dismissal is cancelled.
How would Opay look like on the new Iphone Duo? I took the layout, icons, and visual language of the @OPay_NG app and reimagined it for the new iPhone Duo OpayonDuo - A speculative UI concept for #OPayat8
My app Personal Best will be ready on day 1! I've put together a dedicated page with screenshots and recordings: getpersonalbest.com/duo
Optimizing an app for iPhone Duo is somehow harder than building it for iPhone + iPad combined. This shit is a pain in the ass I hate it
Resigned an Electricity app for the iPhone Duo across: — Outer display: portrait — Inner display: fully open Adaptive UX is hereeeeee 🤭
Stephanie Obi@1StephanieobiI couldn’t wait 🥲
Designed a logistics app for the iPhone Duo across:
— Outer display: portrait
— Outer display: landscape
— Inner display: fully open
Adaptive UX is hereeeeee 🤭Previously is ready for iPhone Duo. 📺🍿 I'm starting to like the idea of getting one... For testing purposes, of course.
by Cole Morell
Cole Morell's Bitrig Hacks showroom for interior designers. Stood half-folded on a table between two people, the designer places real-size furniture in a 3D apartment on the inner display while the client watches the room on the cover.
I'm currently working on a text to speech app that will be all on device, etc. It's still in TestFlight but should be ready by the day the Duo comes out Primarily for sending articles from safari but books/etc work too. I'm working on folders/color change support rn… Show more
IPHONE DUO, BUILT FOR COLLECTORS. I wanted to imagine what a @renaissxyz collection could feel like on a foldable device, so I designed the full experience for both screens. Closed, you get your collector profile and collection identity. Open it, and your graded cards unfold… Show more
by Zubair Zafar
Zubair Zafar, Z A, Barrat Mohammad and Pranav Sagar's Bitrig Hacks postcard app, shown in animated mockups. Closed, your trip photo is the card's front; open it to write on the back; close it to seal it with a stamp, then tap Send.
The iPhone Duo is such a pain, how am I supposed to make SameBoy not look awkwardly asymmetric with this silly camera hole? 😭
by Vlad Shumov
Vlad Shumov's Bitrig Hacks entry, in a rendered promo. Half-folded, a trading card lies on the lower half while the upper half sweeps light patterns over it to find scratches and bends; open flat, its grade and value sit beside it.
Made an exclusive album size in Snapling for the iphone duo. Figuring out other cool changes that might look great. #shipaton #buildinpublic
Space War - now updated for iPhone Duo! Added landscape mode. apps.apple.com/app/space-war-…
Been looking at all the awesome stuff people posting for Duo so decided to give it a shot myself.. Stickman will be available before DUO arrives on App store with some refinements and some additions Really looking forward to get this to all 🙌🙌
Stories for Letterboxd update will come out later this month. It's already optimized for iPhone Duo
optimizing Stuff for iPhone Duo ✨ still some more to do, but it's coming along!
iPhone Duo support is coming along for Television Time. Needs some work, but is a good start. Can't wait to try the Duo in person next month 🤩
I am working on an app version of The Odyssey that emulates the look and feel of a Loeb for the iPhone Duo. You can tap on a Greek word and it will display the definition!
Your trading desk. Folded in your pocket. THORWallet Pro desk for iPhone Duo and Galaxy Z Fold 8, live October 23: - 636 markets: perps, stocks, crypto - Draw on the chart - Two charts side by side Not a stretched phone app. thorwallet.org/pro… Show more
got this really good feedback for my #Shipaton app Thruu last night so today i made these improvements to how it will look on Duo! i think it looks a lot better
Rouzbeh@JustRouzbehYou have one wide view on the inner screen in landscape, which is not that ideal. It’s better to have two views side by side, one main view that can be changed via tab buttons and one additional view.
Only keep the current one view in portrait inner screenMore work to be done obviously .. But first pass on supporting Duo with X-plat app 🔥 Stays the same on regular phones, web & desktop. With responsive folds/postures, @UnoPlatform cooks!
My app, Valise, will also help you pack your bags on your iPhone DUO. More info : valise-travel.pages.dev/en/
Bookmark this page or subscribe by RSS. New ideas get a New badge on your next visit.
