Aizu

Aizu (合図) - Japanese for "signal" or "cue."

Your phone becomes the cue. Your desktop responds.

Aizu connects your iPhone to your desktop computer over your local Wi-Fi network. No cloud, no account, no subscription. Pair once with a 6-digit PIN, and your phone becomes a remote control for everything that lives on your desk.


WHAT YOU CAN DO

Launch any app
Tap any installed application on your phone, and it opens instantly on your desktop. Build a custom grid of your most-used tools. Switch between editing, designing, and meeting workflows with one tap.

Control windows
Minimize, maximize, focus, and cycle through running applications. Manage your desktop window state without touching the keyboard.

Sync clipboard
Copy on your desktop, paste on your phone. Or vice versa. Text flows freely between devices the moment you copy it.

Quick Actions
Volume control with haptic feedback. Sleep, lock, and screenshot triggers. Take a screenshot remotely without breaking your flow.

Zero latency
Built on Bonjour for instant peer discovery and a custom TCP framing protocol for sub-frame response times. Everything happens over your local network. Your data never touches our servers.


HOW IT WORKS

1. Install Aizu on both your phone and your desktop.
2. Open both apps. They discover each other automatically over Wi-Fi.
3. Enter the PIN displayed on your desktop into your phone.
4. Paired. The connection persists across reboots.


PRIVACY-FIRST DESIGN

- No account required. No sign-up. No login.
- No telemetry. No analytics. No ads.
- Your activity stays on your local network. Aizu never connects to a cloud service to relay anything.
- Local Network permission is the only network permission Aizu requests.


REQUIREMENTS

- iPhone running iOS 18 or later
- A desktop computer running macOS 14 or later (Apple Silicon or Intel)
- Both devices on the same Wi-Fi network
- The Aizu desktop companion (free download at maclift.app)


FROM TOKYO

Aizu is built by Meta Studios, an independent studio in Tokyo. Designed for cinematographers, designers, developers, and anyone whose work spans both a phone in their hand and a screen on their desk.

合図 - the cue is yours.