Knock
Knock on your MacBook to control your Mac
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Knock turns taps on your MacBook into instant actions. Switch tabs, change desktops, play/pause music, open apps, run custom scripts, or take screenshots - all with a simple knock. Tap the desk beside your laptop or knock on the MacBook’s chassis (not the trackpad). Knock uses the built-in accelerometer in Apple Silicon MacBooks to trigger customizable shortcuts.
PH · launched Mar 16, 2026 · 168 upvotes (top 88%) · 2 views
Niche: macos system utilities · 448 launches, 31 in the last 7 days ▼ -30% · Explore this niche →
Category and tags
- Horizontal
- Workflow automation
- B2C
- Not AI
- Commercial product
- Mac
- Productivity
- Menu Bar Apps
Visit website ↗ Source listing ↗
More like this: all 448 launches in macos system utilities →
Could you build this?
Partial While macOS menu bar apps are straightforward, tapping into undocumented private IOKit APIs to read low-latency Sudden Motion Sensor (SMS) accelerometer data reliably on modern Apple Silicon Macs requires specialized low-level systems engineering.
What it would actually take: A developer needs Swift/Objective-C with low-level IOKit/CoreFoundation bindings to read Apple accelerometer hardware registers. On Apple Silicon, accessing raw internal sensor data is restricted and undocumented, requiring reverse-engineered private frameworks and continuous calibration algorithms to separate accidental desk knocks from typing vibrations without draining battery.
Competitors
Other products that read as similar to this one : 970 launches clear the similarity bar, closest 8 shown.
Attention rank: #959 of 971 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 120 days after the earliest competitor.
- KnockSense · ph · 2026-11-12 · 1 upvotes · similarity 0.82
- mactap · ph · 2026-09-10 · 3 upvotes · similarity 0.72
- KnockKnock · ph · 2026-10-16 · 5 upvotes · similarity 0.68
- Sway · ph · 2026-09-13 · 4 upvotes · similarity 0.61
- Tack+ · ph · 2026-09-30 · 1 upvotes · similarity 0.57
- lidtap · github · 2026-10-30 · 119 upvotes · similarity 0.56
- JUMP · ph · 2026-10-29 · 2 upvotes · similarity 0.56
- EdgeBar · ph · 2026-11-06 · 107 upvotes · similarity 0.55
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