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Duo
An iPhone Duo simulator you can build apps for
Inspired by Apple's iPhone Duo, Duo is a desktop simulator for exploring a phone that folds. Fold it, rotate it, and build apps for its inner and cover displays with a fold-aware SDK, React UI kit, and App Store. Try the browser preview for a taste of the experience.
Hi Product Hunt! Apple's iPhone Duo inspired me to explore what a folding iPhone could feel like before I could hold one.
How would apps move between the inner and cover displays? What could you do with the phone halfway open? I wanted something I could interact with and build for.
That's the idea behind Duo: a desktop simulator where you can fold the device, rotate it, open apps, and experiment with your own ideas. There's also a browser preview you can try right away.
Duo is built with Tauri, with cross-platform desktop support as the goal. Its developer platform brings together a fold-aware SDK, a React UI kit, and an App Store for installing apps without rebuilding the simulator.
This is my independent project, not an Apple product or an iOS emulator. The apps you build run inside Duo.
It's the first release, and I'm still refining the experience, so expect some rough edges. I'd love to hear what feels right, what breaks, and what you'd build for a folding screen.
Duo was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #88 on the daily leaderboard. Inspired by Apple's iPhone Duo, Duo is a desktop simulator for exploring a phone that folds. Fold it, rotate it, and build apps for its inner and cover displays with a fold-aware SDK, React UI kit, and App Store. Try the browser preview for a taste of the experience.
On the analytics side, Duo competes within Design Tools, Developer Tools, GitHub and OpenAI Day — topics that collectively have 824k followers on Product Hunt. The dashboard above tracks how Duo performed against the three products that launched closest to it on the same day.
Who hunted Duo?
Duo was hunted by Thanh Doan. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Duo including community comment highlights and product details, visit the product overview.
Thanh Doan
Hi Product Hunt! Apple's iPhone Duo inspired me to explore what a folding iPhone could feel like before I could hold one.
How would apps move between the inner and cover displays? What could you do with the phone halfway open? I wanted something I could interact with and build for.
That's the idea behind Duo: a desktop simulator where you can fold the device, rotate it, open apps, and experiment with your own ideas. There's also a browser preview you can try right away.
Duo is built with Tauri, with cross-platform desktop support as the goal. Its developer platform brings together a fold-aware SDK, a React UI kit, and an App Store for installing apps without rebuilding the simulator.
This is my independent project, not an Apple product or an iOS emulator. The apps you build run inside Duo.
It's the first release, and I'm still refining the experience, so expect some rough edges. I'd love to hear what feels right, what breaks, and what you'd build for a folding screen.
Check it out: https://duo.doan-labs.com/