Mario Esteban Quiroz Castillo

tapcut - The analogue shortcut

Tap the palm rest of your MacBook. Something happens. Using the built-in accelerometer, tapcut turns 2, 3, or 4 taps into any action — open Claude, run a macOS Shortcut, launch an app. A gesture replaces the hotkey you keep forgetting. macOS 14+ on Apple silicon. 3-day free trial.

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Mario Esteban Quiroz Castillo

Hi Product Hunt!

I'm Mario, the maker. Built tapcut solo.


It started when I found out Apple Silicon Macs have a built-in accelerometer that basically nothing uses. Felt like a waste of perfectly good hardware. I wanted to build something with it, something I'd actually use myself.


A few days later, you can map 2, 3, or 4 taps on the palm rest to any action — AI prompts, macOS Shortcuts, screenshots, app launches, text snippets, and a "Breathe" overlay.


3-day free trial. macOS 14+ on Apple silicon (the sensor doesn't exist on Intel).


Would love feedback on the gesture feel and what actions you'd want next.

Qifeng Zheng

accelerometer-as-input is the kind of idea that only ships when the maker is also the user. half my "hotkeys" are just spotlight'ing the app name again because i forgot the combo. curious how you handle false positives — like typing on a wobbly cafe table?

Mario Esteban Quiroz Castillo

@qifengzheng Detection uses jerk (sample-to-sample acceleration delta), so typing and slow wobble stay low, a real tap is a sharp spike. Not perfect though, cafe-table edge cases happen.

There's a sensitivity slider in Settings if it misfires for you. Anything I really don't want firing by accident I map to 3 or 4 taps. 2-tap is for opening Claude right now.

Qifeng Zheng

@mquiroz  jerk vs amplitude is a smart split — explains why slow wobble doesn't trigger. the 2/3/4-tap risk gradient is the part i like most — gestures with built-in friction for destructive stuff. curious what your 4-tap is mapped to right now.

Mario Esteban Quiroz Castillo

@qifengzheng Yeah, the risk gradient thing fell into place naturally, once threshold was tuned 4-tap got hard enough to misfire that it became the slot for deliberate stuff

Mine's a 25m pomodoro on 4-tap, committing to focus shouldn't be casual, then Breathe on 3-tap because it feels nice, Claude stays on 2-tap