Comparison

Musa vs Clefs

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Musa

Features
Read full description

Musa came home from her piano lesson upset - she had forgotten all the notes on the treble clef. And the music school exam was coming soon. That's how "Musa" - a music notes learning game - was born. To make learning notes fun, not boring textbook drilling. WHAT'S INSIDE - Treble and bass clef - 30 levels across two islands - 3 mini-games: - "Name the Note" - staff quiz - Virtual Piano - play melodies on the keyboard - "Falling Notes" - speed arcade challenge - Boss exams: drag-and-drop notes onto the staff - 14 collectible Notiki characters: Do-bunny, Re-fox, Mi-cat, Fa-owl, Sol-dolphin, La-butterfly, Si-firefly - Storyline: Musa saves Notlandia from the villain Cacophony WHO IT'S FOR - Kids ages 7-12 - Beginning piano, violin, or guitar students - Music school students (grades 1-3) - Practice between music lessons - Solfege exam preparation KIDS SAFETY - Completely free - No ads - No in-app purchases - No data collection - No internet required after download - COPPA compliant VISUAL STYLE Vintage music book aesthetic - parchment pages, hand-drawn illustrations, warm sepia tones. No flashy cartoon visuals. LANGUAGES English and Russian. Full localization of interface and learning content. TECHNICAL - Works offline after initial download - iPhone and iPad support - Haptic feedback - High-quality audio (real-time note synthesis) Made by a father for his daughter and her classmates at music school. Development driven by feedback from parents and music teachers. Channel: t.me/musa_notlandia Web version: musa.mddt.tech

About

Clefs

Master sheet music reading with daily exercises and a guided course. This app helps you instantly recognize notes across all clefs, from beginner to advanced levels. Practice reading and writing notes, track your progress, and even connect a MIDI keyboard.

Highlights
  • Step-by-step guided course
  • Smart spaced review practice
  • Reading and writing drills
  • Support for all ten clefs
  • MIDI keyboard connectivity
  • Built-in music theory guide
Features
Read full description

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.

Screenshots

Musa4 screens
Clefs4 screens

Verdict

The call

The clearest difference is in-app purchases: Musa at none against Clefs's 1. Musa also leads on iOS requirement (13.0 vs 18.0). Clefs's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Clefs sells 1 one-off in-app purchase. Musa asks for nothing beyond the download.

UpkeepUpdate frequency

Musa ships an update every 2 months, Clefs weekly. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

Scorecard3 real differences · 6 level
Musa versus Clefs: the parameters behind the verdict, then further details
ParameterMusaClefs
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better18.0
Further details — not scored
Size29 MB25 MB
Age rating4+4+
DeveloperAleksandr VolkovCrazy Ootka Software AB

In-app purchases

None

Musa

No in-app purchases

1 purchases

Clefs

One-time1
  • Clefs Premium$6.99

Questions

Is Musa free?
Musa is free to download, with no in-app purchases.
Is Clefs free?
Clefs is free to download, with in-app purchases available.
Do Musa or Clefs have ads?
Neither Musa nor Clefs shows ads.
Which is updated more often, Musa or Clefs?
Musa ships an update every 2 months, and Clefs weekly. Most recently, Musa was updated on October 2, 2026 and Clefs on October 4, 2026.

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