A visual metronome.

Ever seen
a cat groove?

CAT SYNC turns rhythm into motion. Choose a CAT, set the tempo, select a click pattern and Groove, then follow the movement and rhythm rail. CAT SYNC helps you see where the beat sits while you practice an instrument, sing, dance, or work on timing.

Watch CAT SYNC ↓

15 seconds of CAT SYNC. Sound on.

01 / Find your CAT

Hear the beat.
See the groove.

From simple motion to dance, drumming and conducting. Find a way of seeing rhythm that suits you.

STEP · CAT SYNC

STEP

Simple motion for the beat.

DANCER · CAT SYNC

DANCER

Dance with the groove.

DRUMMER · CAT SYNC

DRUMMER

Rhythm through drumming.

CONDUCTOR · CAT SYNC

CONDUCTOR

See the beat in conducting motion.

02 / Song Deck

Pick a song.
Get ready to play.

Song Deck helps set up tempo, click pattern and Groove using your saved settings or shared song settings. Adjust them to suit your practice. Keep favourites in Bookmarks and organise them into Setlists.

CAT SYNC · Song Deck
CAT SYNC · MINI
03 / MINI

A little companion,
beside your music.

On iPhone and iPad, MINI uses a Picture in Picture window with a background. On Mac, Windows and Android, MINI can appear over other apps with a transparent background.

And more.

Your practice tools.
All together.

Adjustable tempo, meter, subdivisions, accents, and GrooveCount-in and practice controlsSong Deck search with prepared rhythm and tempo settingsBookmarks and editable Setlists
Start with STEP.

Start free.
Find your groove.

STEP, MINI, Song Deck, Bookmarks, Setlists and basic practice tools are free. Premium CATs share five minutes of active use per day, including MINI. Paid plans remove only this CAT time limit.

Optional rewarded videos can extend premium CAT access on iPhone/iPad and Android. Availability depends on consent, region and ad supply. Desktop rewarded ads are not available yet.

RHYTHM HYPOTHESIS

Rhythm as Relative Temporal Structure

Explore the ideas behind CAT SYNC in rhythm working notes.

Read the rhythm theory · English only ↗
CAT SYNC

Find your
groove.

iPhone / iPad, Mac, Android and Windows: preparing for release.

Release status · 16 October 2026

Support ↗