How does Haptyk detect typing force?

Apple Silicon MacBooks (M2/M3/M4+) have an undocumented accelerometer managed by the Sensor Processing Unit. Haptyk reads impact force data at ~1,000 times per second via IOKit HID and matches it to each keystroke in real time.

Yes. Haptyk is free to download and use with full velocity detection and 1 included sound pack. Pro ($8 one-time) unlocks all 16+ sound packs and custom sensitivity tuning.

Which MacBooks are compatible with Haptyk?

Haptyk requires an Apple Silicon MacBook Pro (M2, M3, M4 or later) running macOS 13 Ventura or newer. The accelerometer is not available on MacBook Air or Intel Macs.

How is Haptyk different from Klack or Mechvibes?

Klack, Mechvibes, and similar apps play the same sound regardless of how you type. Haptyk is the only app that reads your actual typing force using the MacBook's built-in accelerometer, so soft presses sound soft and hard presses sound loud.

The velocity‑sensitive mechanical keyboard your MacBook was missing.

Haptyk detects how hard you type on your MacBook and plays the matching mechanical keyboard sound in real time. Type softly, hear a soft click. Slam a key, hear the slam.

Download for free See how it works

HOW IT WORKS

Not just another keyboard sound app.

Other apps play the same click, or a random one, no matter how you type.
Haptyk reads your actual typing force for an authentic, immersive mechanical keyboard experience on your MacBook.

You type

Keystroke captured

simultaneous

Force detected

~1,000 reads / sec

Intensity matched

Soft · Medium · Hard

Instant playback

Native C · < 1ms

The developer behind Haptyk pioneered access to the internal accelerometer on M1+ MacBooks. A capability no other keyboard sound app has ever used.

UNDER THE HOOD

Built for zero latency.

Haptyk's audio engine and impact detection are written in C, the same language behind professional audio software. No Electron. No web wrapper. Pure native performance on your Mac.

< 1 ms

Keystroke-to-sound latency

C / Obj-C

Real-time audio thread. No garbage collector, no lag

Native

Runs directly on macOS. No middleman, no compromise

The difference

Every other app guesses.
Haptyk measures.

Klack, Thock, Mechvibes…

~ Keystroke triggers a random sample
~ Same volume no matter how hard you type
~ Fake pitch jitter to simulate variation
~ $5 one-time, 3 to 10 sound packs

Haptyk

+ Built-in MacBook accelerometer reads real impact ~1,000× per second
+ Volume & tone scale with your actual typing velocity
+ Continuous crossfade between velocity tiers
+ Sub-millisecond keystroke-to-impact correlation

Sound packs

No subscriptions. No accounts. Download, use forever. Upgrade when you want more.

Free

Forever

✓ Real velocity detection
✓ Crossfade engine
✓ 1 sound pack (Biscuit)
✓ All key groups
✕ 15+ premium packs
✕ Custom sensitivity tuning
✕ Import community packs
✕ All future packs

Download free

Pro

$15 $8

Early adopter price until June 1, 2026

✓ Real velocity detection
✓ Crossfade engine
✓ All 16+ sound packs
✓ All key groups
✓ Custom sensitivity tuning
✓ Import community packs
✓ All future updates included forever

Upgrade from within the app

The velocity‑sensitive mechanical keyboard your MacBook was missing.

Not just another keyboard sound app.

You type

Force detected

Intensity matched

Instant playback

Built for zero latency.

Every other app guesses.Haptyk measures.

16 switches. Real recordings.

Biscuit

Alpaca

Blue Alps

Buckling Spring

Cherry MX Black PBT

Cherry MX Blue PBT

Cherry MX Brown PBT

Cherry MX Red PBT

EG Crystal Purple

Gateron Black Ink

Gateron Red Ink V2

Holy Panda

Kailh Box Navy

NK Cream

Topre PBT

Turquoise Tealios

More coming

Start free. Go pro when you want.

Every other app guesses.
Haptyk measures.