Private rhythm tracking for iPhone

Your rhythm becomes a record.

Create a Rule, give it a Knock or Gesture, and record a Moment or Activity without breaking your flow.

Ready Just Knock

Knock or draw to record

Record in rhythm

Use Taps, Holds, multi-finger Gestures, or your own single-stroke drawing as a Trigger.

Moments and Activities

Mark something that happened or track time from start to end with the same familiar input.

Private by design

No account, advertising, analytics, or developer cloud. Your records are stored on your iPhone.

Private by default

Your rhythm stays yours.

Just Knock has no account, advertising, analytics, or developer cloud. Rules and records stay on your iPhone.

How privacy works