AimMac

Turn your iPhone or Apple Watch into a pointer for your Mac. Aim it at the screen to move the cursor, tap to click, hold to drag.

No Wi-Fi and no servers: the phone or watch talks straight to the Mac over Bluetooth.

Status: the Mac app and the iPhone app work (tested on iOS 27.2). The Apple Watch app works too (tested on an Apple Watch Ultra with watchOS 26.6), but it is new, so expect rough edges.

What it does

• Point like a laser. The cursor goes where the top edge of your device points (12 o'clock on the watch). Up/down comes from gravity, so it never drifts. Works across all your displays.
• Tap to click, double-tap to double-click, a right-click button, and scrolling (Digital Crown on the watch, a scroll strip on the phone). On the iPhone you can also hold to drag; the watch only clicks.
• Trackpad mode on the iPhone. Lay it on the table and slide a finger, with a drag lock for moving windows.
• Center re-aims the middle of the screen. Pause frees the cursor for your real trackpad.
• Pairing with approval. The first time a device connects, the Mac asks you to allow it. Devices you didn't allow can't move the cursor.
• Notch panel. Hover the notch (or the middle of the menu bar) to see the connected device, its battery, a live aim map and quick buttons. Pin it to keep it open.
• Two small games to try it on: Duck Shoot and Orbit Pop.

Requirements

• Mac with macOS 14 or later, Apple silicon or Intel, with Bluetooth
• iPhone with iOS 17 or later and/or Apple Watch with watchOS 10 or later
• Xcode 15 or later (use a version whose SDK matches your iPhone's iOS)

1. Mac receiver

cd Mac
chmod +x build.sh
./build.sh run

The first launch asks for Bluetooth and Accessibility (System Settings › Privacy & Security › Accessibility). Accessibility is what lets it move the cursor. Allow both.

After a rebuild macOS may forget the Accessibility permission. If the cursor stops moving, turn AimMac off and on again in that list.

2. iPhone and Apple Watch apps

With XcodeGen:

brew install xcodegen
cd Apple
xcodegen
open AimMac.xcodeproj

1. Sign with your Apple ID: create Apple/Local.xcconfig with your bundle prefix and Team ID (see Apple/Config.xcconfig), or just pick your Team in Signing & Capabilities. A free Apple ID works.
2. Choose your iPhone (or your watch) as the run destination and press ⌘R. The first time, turn on Developer Mode on the iPhone (Settings › Privacy & Security) and trust your developer profile (Settings › General › VPN & Device Management).
3. Open AimMac on the device, tap Pair next to your Mac, then click Allow on the Mac.

With a free Apple ID, apps you install from Xcode stop opening after 7 days; just run them again from Xcode.

Using it

Hold the device like a remote with its top edge toward the screen. Point at the middle of the screen and tap Center.

Speed, smoothing and axis inversion live in the AimMac menu on the Mac.

Watch tips: on the iPhone's Watch app turn off Passcode › Wrist Detection if you hold the watch in your hand, set Display & Brightness › Wake Duration to 70 seconds, and General › Return to Clock › AimMac to one hour. Tap More on the watch for settings and unpairing.

Duck Shoot

Choose Play Duck Shoot in the menu bar menu. Ducks fly across a sunset sky; tap to fire, or keep the crosshair on a duck for a third of a second and it fires by itself (press A to turn auto-fire on or off). Headshots score double, golden ducks five times, and every hit in a row raises your combo. A different dog pops out of the grass after each hit, and laughs when a duck gets away. Press F for full screen.

Orbit Pop

Click Game in the notch panel or Play the target game in the menu. Press F for full screen. Rings shrink and fade; pop them before they collapse. Center hits score double, gold rings triple, and every hit in a row raises your combo.

How it works

• Device (Apple/): reads gravity and the gyroscope 100 times a second. Up/down is the angle of the top edge above the horizon; left/right adds up turns around the true vertical. Each sample carries the device's timestamp.
• Mac (Mac/): projects the aim onto the screen like a laser hitting a wall, smooths it with a 1€ filter using the device's timestamps, and eases the cursor toward it 240 times a second on its own thread. A click lands where you were aiming the moment your finger touched the screen, so the tap's jolt doesn't move it.
• Bluetooth: the Mac advertises a service; the device connects and writes small packets. The protocol is documented at the top of Shared/Protocol.swift.

Credits

Inspired by WatchPointer by umarz317. AimMac is a separate implementation written from scratch.

License

MIT