Knock
Create shortcuts by hitting your mac
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Read the full description
Knock is a shortcut app that lets you control your Mac by simply knocking on it. Tap the sides of your laptop and it runs any shortcut you want — screenshot, open apps, mute sound, and more. It uses your Mac's built-in accelerometer to actually feel the vibration of your knock and react in real time, no extra hardware needed - just knock and go.
Visit website ↗ Source listing ↗
PH · launched Oct 26, 2026 · 73 upvotes (top 2%)
- Horizontal
- Workflow automation
- Prosumer
- Not AI
- Commercial product
- Productivity
- Tech
- Apple
Similar launches
See all 620 similar launches →Could you build this?
Partial The UI and shortcut-runner logic are easy, but reading the Mac's accelerometer and reliably detecting knocks is a sensor-level problem that needs low-level APIs and signal-processing tuning.
What it would actually take: A Swift/macOS app that reads the built-in accelerometer through IOKit or private sensor interfaces, then runs a filter and classifier to separate knocks from typing and movement. The hard parts are accessing the sensor on current Apple Silicon hardware (often undocumented) and tuning detection thresholds per model. Some macOS-internals and DSP experience is needed.
Competitors
Other products that read as similar to this one : 620 launches clear the similarity bar, closest 8 shown.
Attention rank: #43 of 621 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 282 days after the earliest competitor.
- mactap · ph · 2026-09-10 · 3 upvotes · similarity 0.72
- KnockKnock · ph · 2026-10-16 · 5 upvotes · similarity 0.61
- JUMP · ph · 2026-10-29 · 2 upvotes · similarity 0.55
- Control My Mac · ph · 2026-10-04 · 62 upvotes · similarity 0.53
- Knock Knock Joke Generator · ph · 2026-09-14 · 2 upvotes · similarity 0.49
- Hypertask · ph · 2026-09-19 · 2 upvotes · similarity 0.49
- Who's at the Door? · ph · 2026-10-28 · 5 upvotes · similarity 0.48
- Tack+ · ph · 2026-09-30 · 1 upvotes · similarity 0.47