The iPhone Duo has a brand new form factor with multiple folding and orientation options, and app developers are having fun with it. You can find quite a few apps that use the foldable screen in unique ways, many of them with skeuomorphic designs. Tiny Computers ($3.99) Tiny Computers turns the iPhone Duo into a miniature retro computer, with options inspired by the Macintosh, Commodore 64, Amiga 500, iMac G3, iBook G3, and more. It works best with the iPhone Duo in a seated position, giving you a virtual screen and keyboard. Minicomputers have clickable keyboards, desktop games and painting programs, plus hidden files and Easter eggs. Fold & Squish (Free) Created by the same developer as Tiny Computers, Fold & Squish lets you create Rorschach art with Duo. You paint a design on half of the Duo’s screen, close it, rub a finger on the outside screen to “squish” the virtual paint, and then open it to see the finished design. An additional “Sparkle Pack” includes sparkle paints, rainbow paint, and pencil guides to help you paint designs like butterflies, but the basic feature set is available for free. Portal ($2.99/month) Portal is a relaxation app that offers “portals” to different natural environments, from a lava river in Iceland to the cloud forest of Costa Rica. There are over 100 locations, each with relaxing sounds and breathing exercises. The app can be used for meditation, but it also has focus and sleep timers. When the iPhone Duo is unfolded, the scenes fill the entire screen, but it also works especially well when the iPhone Duo is in tent mode. There are three free portals that are updated every month, and a Premium subscription is priced at $2.99 per month or $29.99 per year. Lake (Free) Lake is an adult coloring book that has been updated for the iPhone Duo. Keeping the Duo in portrait mode gives you a full-page coloring surface, and the developer tells us it’s updating for Apple Pencil. Lake has coloring pages from a long list of artists. It’s free to download and comes with basic tools and coloring pages, but unlocking the full app requires a $9.99 per month premium subscription. Toastie ($2.99) Toastie turns the iPhone Duo into a toaster for making grilled cheese sandwiches. It’s a game where you prepare the sandwich ingredients and then close the iPhone Duo to toast the sandwich. Time is important and the goal is to make a perfect grilled cheese. We turned the iPhone Duo into the most expensive toaster in the world 🥪 Prepare the sandwich quickly and then close your Duo to toast it. But don’t burn it! Check it out: https://t.co/riRVUFLlm1 https://t.co/0llh2lv9R1 — Tom Szykulski (@t_szykulski) October 7, 2026 Delta Game Emulator (free) The popular Delta game emulator app has been updated for the iPhone Duo, turning the Duo into a Nintendo DS. iPhone DuoでDelta、折り畳むと笑う https://t.co/DySRV7UMBz — たっくん＠超かぐプログラミング本 (@mikuta0407) October 23, 2026 The app has Nintendo DS Controls, and when you close it, it looks like the shell of the gaming system and puts the game you’re playing into sleep mode. Delta also supports many games from other systems. TypeDraw ($4.99) TypeDraw turns the iPhone Duo into a laptop. It looks like a notebook when the Duo is closed and then you can open it to see pages you can write on. The app is compatible with Apple Pencil. Taking notes on the iPhone Duo is very satisfying… especially when it looks and feels like a real notebook that really belongs to you. With TypeDraw, you choose what happens when you “open” your book, and you can customize it with colors, fonts, and even your own handwriting. For everyone lucky enough to get their hands on a Duo today: TypeDraw is now available on the App Store. For everyone else: It also looks and works great on regular iPhones 😄 — Phil Traut ᯅ (@SpatiallyMe) October 23, 2026 Fold Accordion ($2.99) As the name suggests, Fold Accordion turns the iPhone Duo into an accordion. The hinge serves as a bellows, so the idea is to open and close the Duo to make music. There is a learning mode that illuminates the keys you need to press. Living Earth ($5.99) If you’re looking for an app that’s ideal for the Duo’s tent mode, Living Earth is worth checking out. It allows you to set a location to get the local time and weather, plus it has a rotating globe that you can spin. When you unfold your iPhone Duo, the globe takes up the entire screen. The app displays clouds, storms, and live weather maps from around the world, so you can track hurricanes, tropical storms, and other weather events. Duometry ($2.99) Duometry is a game that gives you a target angle that you must match by bending the iPhone Duo. The idea is to make your best guess of the angle and then fix it to see if you were right. Deck-Man ($4.99) Deck-Man turns your iPhone Duo into a retro cassette player. You open the iPhone Duo to choose your music, insert the cassette, and then close the Duo to start music playback. Orisuji ($4.99) Orisuji is a paper maze game where you start with the inside screen and then fold the iPhone Duo to the outside screen to solve the puzzles. More fun Foldissimo apps: If a pocket accordion wasn’t enough, there’s also Foldissimo, which lets you use your iPhone Duo to play accordion songs. Fold Focus ($5.99/month): Fold Focus is a pomodoro timer app that motivates you to keep your iPhone Duo closed for work, study, or creative sessions. While your device is off, you work on building a virtual city. Foldfish (Free): Foldfish is a game where you unfold the iPhone Duo to throw, tap to throw, and then hold it to capture a catch. Nitelore (Free): Nitelore is an anti-gravity racing game with neon colors and it looks great on the iPhone Duo. Share your favorites Have you found other fun apps that we don’t have on our list? Let us know in the comments below.
