Current functionality is provided through ArcRelay Suite. Standalone distribution is still being validated; no separate download is promised.
Mouse: cross-screen input
Share desktop input
Arrange displays to match your physical desk in Cross-screen input. Enable sharing, then move the pointer through an adjacent display edge to switch computers. Layout accounts for display size, scale and rotation; handoff areas are generated from neighboring edges rather than drawn individually.
- Use one mouse, keyboard and scroll wheel across computers in the workspace.
- Local physical input on another computer can take control; one device is not permanently assigned as the controller.
- Keyboard profiles can translate semantic shortcuts such as copy and paste for the target system or application. Terminal-oriented profiles can preserve physical key behavior.
- Crossing an edge while dragging is disabled by default and can be configured. Input crossing is not itself a file transfer.
- Disconnection, disabling sharing or emergency release clears held keys and buttons and restores local input.
For recovery, Command/Ctrl + Alt + Shift + M releases remote control and returns the pointer to the center of the local display. Command/Ctrl + Alt + Shift + Escape releases control without recentering.
Phone touch and text input
Phone control is a separate flow: move the pointer with one finger, tap or double-tap to click, use two fingers to scroll or right-click, and long-press to drag. The system input method supports composed text, including Chinese and emoji; special keys and editing shortcuts supplement the touch keyboard.
Only one authorized device can hold phone-control ownership at a time. Desktop settings identify the controller and provide an emergency disconnect. Multi-finger system gestures on compatible Macs depend on negotiated support and system permissions, not a promise of identical behavior on every OS version.
Neither input mode is a video remote desktop. To see and control another computer’s complete screen, explore SubnetDesk.
Boundaries
macOS needs Accessibility access; phone remote input does not support Linux yet. Input sharing does not stream a remote desktop.