Crank. Is Now on the App Store

Crank. is live on the App Store.

After months of building, testing, and refining, our music practice and BPM tracker is ready for musicians on iPhone. If you've been waiting for a simple way to log your speed and actually see improvement — it's here.

What Crank. does

Crank. helps musicians track BPM progress for specific practice fragments — like a gym tracker, but for music. You add a lick, riff, or technique, set a target BPM, and log your speed after each session. The app charts your progress, tracks your streak, and shows when you've hit your target.

It also includes a built-in metronome with tap tempo and subdivisions, so you can practice and track in one app — no switching between tools mid-session.

Who it's for

Guitarists working on speed. Pianists drilling scale runs. Drummers pushing tempo on fills. Any musician who cares about measurable progress on any instrument where BPM matters.

Free to start

The free tier includes up to 5 practice fragments, basic logging, progress charts, and the full metronome and tuner — with no time limit. Pro unlocks unlimited fragments, full stats, collections, and smart reminders.

Download on iOS

Crank. is available now on the App Store for iPhone. Android is coming soon.

Download free and start tracking your first fragment today.