For changing hand movement

Can your Mac mouse feel steadier with Parkinson’s?

TrueCursor calms extra movement in the arrow. It can also help a click land where you meant. You keep the mouse, trackpad, or trackball you know.

A Parkinson’s-type shake, on our test benchrecorded from the real engine
The hand, restingbefore
The arrow, with TrueCursorafter
This recording uses the rhythm measured in real Parkinson’s tremor: about five waves a second, with the sharp shape that makes the arrow so hard to read. Same three seconds, top and bottom. The bottom line is what you see on screen.

Try familiar tasks

Where could a steadier mouse help?

Email

Choose the right message

See if it takes fewer tries to land on a name or a small button.

Photos

Click without a slip

See if one click stays put instead of moving the photo by mistake.

Forms

Move between boxes

Check whether the arrow settles more easily on each choice.

Needs can change

What if your hand feels different later?

Nothing to adjust. The app keeps measuring quietly and follows your hand on its own, morning and evening, before and after medicine.

A setting that helps in the morning may not help later. There is no score you have to reach.

Try together

Can someone help with setup?

Yes. A family member can help with the first Mac permission and setup. You should still choose what feels best to your hand.

If they help from another home, keep a phone call open. Practice pausing before trying a real task.

You stay in charge

Can you turn the help off quickly?

Hold fn

Use your normal pointer

Hold fn and the help stops for as long as you hold it.

Pause

Stop everywhere

Pause from the menu bar at any time. You can quit or remove the app too.

Private

Keep movement private

Your movement stays on your Mac. A real person answers if you email for help.

TrueCursor helps with computer input. It does not monitor or treat Parkinson’s.

Try the mouse you already use.

The full app is free for 30 days. No card is needed. Results vary.

Download the free trial
Beyond the computer: for information and support about living with Parkinson’s, the Parkinson’s Foundation is the place to start. This page is about using a Mac, it is not medical advice, and your care team knows your situation best.