Comparison

Music Theory 101 vs Clefs

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

Head to head
About

Music Theory 101

An interactive music theory training app covering classical fundamentals. It features 19 units with audio, exercises, and definitions, mirroring AP Music Theory exam curriculum. Practice skills with over 90 exercise types.

Highlights
  • Interactive music theory course
  • 19 comprehensive units
  • Audio samples and key definitions
  • Skill practice exercises
  • AP Music Theory exam curriculum
  • Over 90 exercise types
  • Aural recognition and dictation
Features
Read full description

Welcome to a new, interactive music theory training app. We offer a comprehensive course presenting the fundamentals of classical music theory. Our course includes 19 interactive units with audio samples, interactive exercises, and key definitions. Alongside this, we offer a streamlined set of skill practice to test core knowledge. This app matches the curriculum of the AP Music Theory exam, which is designed to reflect a knowledge at the introductory college level. We're excited to help you learn. And if you’re a student… good luck with your upcoming exam! Lessons include: - Pitch and Rhythm - Scales, Meters, and Modes - Intervals, Triads, and Seventh Chords - Harmonic Progressions and Cadences - Four-Part Chorale Writing and Two-Part Counterpoint - Embelleshing Notes, Tonicization, and Melodic Techniques The app includes over 90 different exercise types, including aural recognition, melodic/harmonic dictation, and single, two-voice, and four-part composition. Our app is still new! Found something that needs to be fixed? Have an idea for what to add next? We'd love to hear from you as we build out the next features. There are buttons across the app for you to submit feedback or take a quick survey to share your thoughts.

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

Music Theory 1013 screens
Clefs4 screens

Verdict

The call

The clearest difference is in-app purchases: Music Theory 101 at none against Clefs's 1. Music Theory 101 also leads on ratings volume (70 vs 2) and iOS requirement (15.0 vs 18.0). Clefs's advantage is rating (5.0 vs 4.8). On price, update cadence, 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. Music Theory 101 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Clefs holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Music Theory 101 has 70 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Music Theory 101 ships an update every 5 days, Clefs weekly. The most recent releases landed on October 22, 2026 and October 21, 2026 respectively.

Scorecard5 real differences · 5 level
Music Theory 101 versus Clefs: the parameters behind the verdict, then further details
ParameterMusic Theory 101Clefs
PriceFreeFree
Rating4.8 (70 ratings)5.0 (2 ratings) — better
Positive reviews82.9% of reviews—
Number of ratings70 — better2
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size78 MB25 MB
Age rating4+4+
DeveloperPoesie IncCrazy Ootka Software AB

Customer experience

Music Theory 101

All ratings64 ratings
Positive93.8%
Neutral4.7%
Negative1.6%
Written reviews35 reviews
Positive82.9%
Neutral8.6%
Negative8.6%

Clefs

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Music Theory 101

No in-app purchases

1 purchases

Clefs

One-time1
  • Clefs Premium$6.99

Questions

Is Music Theory 101 free?
Music Theory 101 is free to download, with no in-app purchases.
Is Clefs free?
Clefs is free to download, with in-app purchases available.
Which has better reviews, Music Theory 101 or Clefs?
Clefs is rated higher. Music Theory 101 averages 4.8 out of 5 from 70 ratings, while Clefs averages 5.0 from 2 ratings.
Do Music Theory 101 or Clefs have ads?
Neither Music Theory 101 nor Clefs shows ads.
Which is updated more often, Music Theory 101 or Clefs?
Music Theory 101 ships an update every 5 days, and Clefs weekly. Most recently, Music Theory 101 was updated on October 22, 2026 and Clefs on October 21, 2026.

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