Clefs: Note Reading Trainer

Learn to read sheet music

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

Learn to read sheet music fluently. Quick daily exercises, a guided course, and smart review take you from your first notes on the staff to instant recognition in every clef. Clefs is a focused note-reading trainer: no filler, just the skill that unlocks everything else in your musical life. Whether you're starting piano, joining a choir, switching to viola, or finally fixing the bass-clef gap you've had for years — a few minutes a day builds real reading fluency. WHAT YOU GET • A step-by-step course: from the treble staff to key signatures, ledger lines and beyond, with exams to prove your progress • Smart practice that remembers you: spaced review brings back exactly the notes you're about to forget • Reading AND writing drills — recognize notes on the staff, then place them yourself • All ten clefs: treble, bass, alto, tenor, soprano, mezzo-soprano, both baritones, French violin and sub-bass • A daily goal, streaks with freezes, and reminders that adapt to your routine • Detailed statistics for every clef and every note MADE FOR MUSICIANS • Connect a MIDI keyboard and answer on real keys • Warm sampled piano sound, precise notation, custom exercises with your own clefs, key signatures and timers • Built-in theory guide when you want the "why" behind the notes START WHERE YOU ARE A short placement test finds your level, so day one is neither boring nor overwhelming. New notes are introduced gradually, consolidated with review, and tested when you're ready. ONE PURCHASE, EVERYTHING FOREVER No subscription. A single one-time upgrade unlocks the full course, all clefs and the exercise editor — free content lets you build the habit first. Reading music is not a talent — it's a practice. Start today.

Ratings & Reviews

  • 5.0
    out of 5
    2 Ratings

Bug fixes and performance improvements.

Version 1.0.1

The developer, Crazy Ootka Software AB, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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

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Accessibility

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Information

Seller
Crazy Ootka Software AB
Size
25.8 MB
Category
Education
Compatibility
Requires iOS 18.0 or later.
  • iPhone
    Requires iOS 18.0 or later.
  • iPad
    Requires iPadOS 18.0 or later.
  • Mac
    Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 2.0 or later.
Languages
English and 4 more
  • English, German, Portuguese, Russian, Spanish
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 Crazy Ootka Software AB
  • Developer Website
  • Privacy Policy

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