Crank.

Music

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Track your BPM. Beat your personal records. Built-in metronome, progress charts, and streaks — everything a musician needs to practice smarter. PRACTICE SMARTER. IMPROVE FASTER. Most musicians practice blind — no data, no feedback, no idea if they're actually getting better. Crank changes that. LOG YOUR BPM Record your speed for any fragment, lick, or technique. Every session tracked, every improvement visible. WATCH YOURSELF IMPROVE Beautiful progress charts show your BPM climbing over time. See exactly how far you've come. KNOW WHAT TO PRACTICE Smart sorting puts your most neglected fragments at the top. Never wonder what to work on next. CELEBRATE YOUR WINS Hit your target BPM? You're In Progress. Blow past it? You're in Overdrive Ready to move on? Mark it Mastered ORGANIZE YOUR PRACTICE Collections let you group fragments your way — by song, technique, or whatever makes sense to you. STAY CONSISTENT Streaks, heatmaps, and personal records keep you accountable and motivated. Built-in metronome with tap tempo, subdivisions, and multiple sound types — everything you need in one app. Works for all instruments — guitar, bass, piano, drums, and more. Crank is built and maintained by one independent developer. Your subscription directly supports continued development. Thank you FREE INCLUDES: Up to 5 practice fragments BPM logging & progress charts Built-in metronome Practice streaks CRANK. PRO (subscription required): Unlimited fragments Full Stats — heatmaps, highlights, personal records Collections & smart reminders Weekly progress review $3.99/month or $29.99/year This app uses Apple's standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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The developer, Ho Sing Chan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Contact Info
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Ho Sing Chan
Size
  • 63.1 MB
Category
  • Music
Compatibility
Requires iOS 16.4 or later.
  • iPhone
    Requires iOS 16.4 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Craftsman Interactive
  • Developer Website
  • Privacy Policy

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