0
of clicks slipped while the button was down, for people with motor difficulties. For others: 6.3%.
The click guard holds the pointer still while the button is down.
Trewin & Pain, 1999StillMouse for Mac · macOS 15 and later
A steadier pointer for shaking hands.
StillMouse takes the shake out of the mouse pointer and ignores clicks you didn't mean, in every app. Your hand moves the way it always does. The pointer goes where you meant.
$34.99 $39.99 once, no subscription · 14-day refund
- Every appWorks wherever the pointer goes
- AI-assistedTuned to your own hand in one minute
- Research-basedEvery setting traces back to a study
- 11 languagesLarge, calm and simple to use
Built on research
More than 1 in 4 clicks slips. It isn't your hand. It's the pointer.
Researchers watched people use a mouse, click by click. Four numbers stood out, and StillMouse has an answer for each one.
0
of double and triple clicks failed. They slipped, came too slowly or counted wrong.
The pointer stays put while you click, so the clicks land in one place.
Trewin & Pain, 19990/11
people chose a pointer that holds still while they click, once they tried one.
StillMouse's click guard works the same way.
Trewin, Keates & Moffatt, 20060×
more double-click errors for older adults than for young ones.
It isn't only shaking: StillMouse helps whenever clicks slip.
Laursen et al., 2001Plain smoothing66% left
StillMouse, Balanced7% left
StillMouse subtracts the shake, like the adaptive filters used to steady surgical tools, which removed about two thirds of hand shake in lab tests. A shake that changes from second to second is harder: then less of it goes.
Our own measurement, 2026 · Veluvolu & Ang, 2010
Every setting traces back to a published study of people using a mouse, linked below. The studies looked at groups of people; they did not test StillMouse, except the one marked as our own measurement.
All sources
- Trewin & Pain, 1999. Keyboard and mouse errors due to motor disabilities. International Journal of Human-Computer Studies 50(2), 109–144. doi.org/10.1006/ijhc.1998.0238
- Trewin, Keates & Moffatt, 2006. Developing Steady Clicks: a method of cursor assistance for people with motor impairments. ASSETS '06, 26–33. doi.org/10.1145/1168987.1168993
- Laursen et al., 2001. Performance and muscle activity during computer mouse tasks in young and elderly adults. European Journal of Applied Physiology 84, 329–336. doi.org/10.1007/s004210000367
- Wobbrock & Gajos, 2008. Goal crossing with mice and trackballs for people with motor impairments. ACM Transactions on Accessible Computing 1(1), 4. doi.org/10.1145/1361203.1361207
- Riviere & Thakor, 1996. Effects of age and disability on tracking tasks with a computer mouse: accuracy and linearity. Journal of Rehabilitation Research and Development 33, 6–15. pubmed.ncbi.nlm.nih.gov/8868412
- Bhatia et al., 2018. Consensus statement on the classification of tremors. Movement Disorders 33, 75–87. doi.org/10.1002/mds.27121
- MacKenzie & Ware, 1993. Lag as a determinant of human performance in interactive systems. INTERCHI '93, 488–493. doi.org/10.1145/169059.169431
- Teather et al., 2009. Effects of tracking technology, latency, and spatial jitter on object movement. IEEE 3DUI 2009. yorku.ca/mack/3DUI2009-Teather.pdf
- Veluvolu & Ang, 2010. Estimation and filtering of physiological tremor for real-time compensation in surgical robotics applications. International Journal of Medical Robotics and Computer Assisted Surgery 6, 334–342. doi.org/10.1002/rcs.340
- StillMouse test, 2026. The Balanced preset against plain smoothing with the same 25 ms delay, on a recorded trackpad movement with a steady simulated 6 Hz shake added. Our own measurement, not a published study.
Try it
Click the dots. Then turn StillMouse on.
This box adds a shake to your own pointer, the kind StillMouse is made for. Click the dots with it off, then on, and compare. It's a simplified browser version of StillMouse's filter and click guard: the real one runs on your Mac, in every app.
Move your pointer in here
On a phone or tablet, drag your finger and lift it to click.
How it works
Three things, working together, all the time.
1
It learns the shake, and subtracts it
Moving the mouse on purpose stays under about 2 times a second. A shake is faster: 3 to 12. StillMouse follows the shake as it changes and takes it out, instead of slowing everything down the way plain smoothing does.
2
It holds the pointer still while you click
With the click guard on, the pointer stays put while the button is down, so it doesn't slip off what you clicked. Taps too short to be a real press don't count, and a second click right after the first is ignored.
3
It keeps the delay small
Any smoothing makes the pointer trail your hand a little, and delay costs speed. Balanced, the starting preset, trails by about 25 milliseconds: too short to notice in daily use.
Eight presets
Each one trades steadiness for how quickly the pointer follows.
Pick one and try it: the right one feels calm. Switch from any app with ⌃ ⌥ M.
- Gentle
- Light jitter, almost no delay
- Balanced Starts here
- A good start for most people
- Strong
- Clear shaking
- Very strong
- Strong shaking; the pointer follows more slowly
- Precision
- Small buttons and text; steadiest, slowest
- Trackpad
- Tuned for trackpads
- Large movements
- Steady at rest, quick across the screen
- Personal
- From your own one-minute test
Tuned to your hand AI-assisted
One minute on your Mac. Then, if you like, an explanation in plain words.
Not sure which preset to pick? StillMouse measures how your pointer moves, replays it through every preset and suggests the one that leaves the least shake for the least delay. Then AI can explain your result in plain words, only if you ask.
- Hold still10 seconds on a dot
- Follow15 seconds after a moving dot
- Click10 targets
On your Mac
The test, the measurement and the suggested preset are worked out by StillMouse on your Mac, without the internet. The recording stays in memory and is deleted when you leave the page.
By AI, if you ask
Only the result's numbers are sent, with a code showing your Mac has a license. Never the recording, your name or your email. You see exactly what goes before you press the button.
Example explanation
- Try Strong for a day of normal use and see how clicking feels.
- If the pointer feels slow on long moves, Balanced trails less.
- Take the test again any time: on another day the result may differ.
Included with every license, up to three explanations a day. These are pointer settings, not a health measurement.
Made for the people who use it
Large, calm and hard to get lost in.
Everything on one page
Every preset is a large card with its name and what it's for. Nothing hidden behind a menu.
Always a way out
If the pointer is ever hard to use, press Control 5 times in a row: StillMouse turns off at once.
Shortcuts from any app
⌃ ⌥ S turns it on or off. ⌃ ⌥ M switches presets, and the name shows on screen.
In 11 languages
English, Türkçe, Español, Français, Português, Bahasa Indonesia, Русский, العربية, हिन्दी, বাংলা and 简体中文.
Quietly in the menu bar
No Dock icon. A mark in the menu bar when it's on, and a window when you want one.
Write to a person
Feedback is a page inside the app, read by the person who makes StillMouse. No mail app needed.
Privacy
Your movement stays on your Mac.
- The filter runs on your Mac. StillMouse needs Accessibility permission to steady the pointer. It never records what's on screen or what you type.
- The test recording is never kept. Only the result's numbers are saved, on your Mac.
- AI only when you ask. The explanation sends about fifteen numbers, never the recording or your name.
- The license knows your Mac, not you. It stores a code made from your Mac's hardware id and the Mac's name, to keep one Mac at a time. The full privacy policy
Why it exists
“I'm hard of hearing, so I know what it's like when a computer isn't built for the way you use it. When the mouse became the hardest part of a close relative's day, I built StillMouse for them. It starts with the pointer. Keyboard help is next.”
Price
One payment. Every click after it, steadier.
No subscription and nothing to renew. Buy it once and it's yours, with every update.
Launch price
$34.99 $39.99
Launch price until 31 December 2026
Secure checkout by Stripe. Your license key comes by email and opens StillMouse with one click.
- All eight presets and the click guard
- Tuned to your hand, with AI explanations
- Every update, including keyboard help when it comes
- One Mac at a time; move it to a new Mac any time
- 14-day refund, no questions asked
- After the 7-day trial, Balanced keeps working for free.
Questions
Does it work with my mouse or trackpad?
Yes. StillMouse works with any mouse, trackpad or trackball the Mac uses, in every app. There's a preset made for trackpads.
Which Macs?
Any Mac with macOS 15 Sequoia or later, Apple silicon or Intel.
Is it a medical device?
No. StillMouse is a pointer setting for your Mac. It doesn't diagnose or treat any condition, and its test measures the pointer, not your health.
What does the AI do, exactly?
The one-minute test, the measurement and the suggested preset are worked out by StillMouse on your Mac. If you press "Explain with AI", the AI reads the result's numbers and explains them in plain words. Nothing is sent unless you press the button.
What if it gets in the way?
Press Control 5 times in a row and StillMouse turns off at once. Or use ⌃ ⌥ S, or the menu bar icon.
I got a new Mac.
Open StillMouse on the new Mac, sign in with the email you bought with, and move the license there. One Mac at a time.
Can I get my money back?
Yes, within 14 days of buying. See the refund policy.