Yosei remote desktop app is a free beta that shows your Mac on an iPhone, iPad or iPhone Duo, and it also lets you watch an AI agent such as Claude Code work in your Mac apps and take control the moment you touch the screen. A Mac mini with no monitor attached works too, because Yosei gives the Mac a display shaped like your iPhone or iPad screen.
Tomas Truben makes Yosei, and the public beta has been open since October 23. Yosei is two free apps, one for your iPhone or iPad and one for your Mac, and the iPhone and iPad app has layouts for the iPhone Duo open, closed and set down half open like a laptop.
The Yosei remote desktop app gives your Mac a display that fits your iPhone, iPad or iPhone Duo
Yosei gives your Mac a new screen with the shape of your iPhone or iPad, so the picture has no black bars. On an iPhone 18 Pro, the Mac picture stops short of the Dynamic Island and the rounded corners.
On an open iPhone Duo, your Mac runs to the very edge of the screen, and Yosei draws the menu bar a little narrower at the rounded corners so the Apple menu and the clock are never cut off. Set down half open like a laptop, the iPhone Duo shows a Mac keyboard and trackpad that rise out of the fold. Closed, the outer display shows your Mac, with Yosei’s controls and the keys of the Mac app in the strip beside the camera.
Touch and keyboard
- Tap to click, tap with two fingers to right-click and tap with three fingers for a middle click.
- When you pinch or rotate, Yosei sends the gesture to the Mac app under your fingers, so you can zoom a photo in Photos or turn a map in Maps.
- Scrolling carries on after you lift your finger, as it does on an iPhone, even over Wi-Fi, and touching the glass stops it.
- Trackpad mode in Settings makes the whole screen work like your Mac’s trackpad.
- When Show for Text Fields is on, tapping a text field on your Mac brings up the keyboard and slides the picture up so you can see what you type.
- Yosei shows the keys of the Mac app in front, such as Back and Reload in Safari, Play and New Slide in Keynote and Send in Mail.
- Safari, Finder, Keynote, Mail, Notes, Terminal and Xcode each have a key set, and every other app gets Spotlight, Mission Control, App Windows, Undo and Redo.
Sound, Apple Pencil and clipboard
- Your Mac’s sound plays on your iPhone or iPad in step with the picture, and your iPhone or iPad works as a microphone on your Mac.
- On a ProMotion iPad or iPhone, the picture runs at up to 120 fps.
- Apple Pencil pressure and tilt reach your drawing apps the way a drawing tablet’s do.
- Text, pictures and files copy from one device and paste on the other in both directions.
Claude Code gets a display of its own and you can take over with a touch
When you give an agent such as Claude Code a job on your Mac, it sees the screen and works in your apps with the pointer and keyboard. That includes apps with no scripting, such as Final Cut Pro and Freeform. The agent works on a display of its own, so your windows stay where you left them, and a glowing edge shows when it has control.
A touch on the screen, a key press or the Pause button in the banner hands control back to you, and the agent stops before its next step and waits until you let it carry on. Your Mac has one pointer and one keyboard, so you and the agent cannot use them at the same time. You can also follow the agent and pause it from your Lock Screen.
Yosei writes every call the agent makes to a log on the Mac, and the last few show in the banner while the agent works. Any MCP client, such as Claude Code, can use Yosei’s tools, which work on your Mac only and stay off until you turn them on. Yosei asks before the agent works in Terminal or your passwords.
Yosei connects over a cable, Wi-Fi or Tailscale and needs no account
Yosei finds your Mac over a USB cable or your Wi-Fi by itself, and it reaches the Mac from anywhere through Tailscale, a VPN service. You pair the two devices once by typing the six-digit code that your Mac shows, and only paired devices can connect. There are no Yosei servers and no Yosei account, and the screen, sound and input are encrypted end to end on every path.
Apple’s Sidecar already turns an iPad into a second Mac display, and macOS 27 added finger input to it. Wirelessly, Sidecar needs the Mac and iPad within 30 feet of each other and signed in to the same Apple Account, while Yosei reaches your Mac through Tailscale from anywhere and also runs on iPhone. Apps such as Sill and Mirage also stream a Mac to an iPhone or iPad.
You join the public beta on TestFlight on an iPhone or iPad with iOS 26 or iPadOS 26, and Set Up a Mac in the app sends the Yosei for Mac download to your Mac by AirDrop, Messages or Mail. Yosei for Mac needs macOS 26 or later, and it asks for Screen Recording, Accessibility and the Yosei Microphone, plus an optional Tailscale step.
The Mac app is not on the Mac App Store, because it adds a display and a microphone that Mac App Store apps cannot add. Yosei is signed and notarized by Apple, and the Mac app updates itself.
The Mac does the work, so it has to stay on and connected. The public beta is free, and Yosei says it will announce pricing well before the beta ends.
