Theory Lessons vs clefPlayer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Theory Lessons
Explore 39 animated music theory lessons covering fundamental concepts like scales, chords, and intervals. Deepen your understanding of musical structure and analysis with this comprehensive resource.
- 39 animated music theory lessons
- Covers staff, clefs, and ledger lines
- Explains note and rest duration
- Details major and minor scales
- Teaches intervals and chord inversions
- Includes Roman numeral analysis
- Features musical analysis examples
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Theory Lessons features 39 music theory lessons from musictheory.net, presented in their original animated versions. Complete lesson list: • The Staff, Clefs, and Ledger Lines • Note Duration • Measures and Time Signature • Rest Duration • Dots and Ties • Steps and Accidentals • Simple and Compound Meter • Odd Meter • The Major Scale • The Minor Scales • Scale Degrees • Key Signatures • Key Signature Calculation • Generic Intervals • Specific Intervals • Writing Intervals • Interval Inversion • Introduction to Chords • Triad Inversion • Seventh Chords • More Seventh Chords • Seventh Chord Inversion • Diatonic Triads • Roman Numeral Analysis: Triads • Diatonic Seventh Chords • Roman Numeral Analysis: Seventh Chords • Composing with Minor Scales • Voicing Chords • Analysis: O Canada • Nonharmonic Tones • Phrases and Cadences • Circle Progressions • Common Chord Progressions • Triads in First Inversion • Triads in Second Inversion • Analysis: Auld Lang Syne • Building Neapolitan Chords • Using Neapolitan Chords • Analysis: Moonlight Sonata
clefPlayer
Learn to play piano with interactive lessons and feedback. Connect a MIDI keyboard to practice your favorite songs or load your own MIDI files. Offers various practice modes and score displays for all skill levels.
- Learn songs via MIDI connection
- Practice with scrolling or sheet music
- One-hand or two-hand practice
- Sight-reading practice mode
- Built-in beginner MIDI files
- Adjustable tempo and looping
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* Learn your favourite songs on piano, whether beginner or pro! * Connect any piano via MIDI and practice any song: the app will wait for you to press the right keys and help you along the way, encouraging best piano learning practices. * Load your own MIDI song files! * Choose between a continuous horizontal scrolling music score, or a traditional music sheet score representation. * Practice one hand at a time, or both! * Get feedback from the on-screen piano about which keys to press next. The on-screen piano can also be hidden away, leaving only the music score. * Practice sight reading: A dedicated mode allows you to choose the clef, scale, and difficulty level. * Batteries included: A number of classic beginner MIDI files are built in. * You can also choose to practice a specific part of the song in a loop. * Set your own tempo clefPlayer is free to use and ad-free for 30 days. After the trial, continued use of the features above requires a one-time in-app purchase (no subscription).
Screenshots
Verdict
The clearest difference is price: clefPlayer at Free against Theory Lessons's $2.99. clefPlayer also leads on rating (5.0 vs 4.4) and update cadence (every 3 weeks vs every 4 months). Theory Lessons's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement 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
clefPlayer is free to download; Theory Lessons costs $2.99 up front. clefPlayer sells 1 one-off in-app purchase. Theory Lessons asks for nothing beyond the download.
clefPlayer holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Theory Lessons has 126 ratings behind it against 1, so its average is the more settled of the two.
Theory Lessons ships an update every 4 months, clefPlayer every 3 weeks. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.
| Parameter | Theory Lessons | clefPlayer |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.4 (126 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 83.1% of reviews | — |
| Number of ratings | 126 — better | 1 |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | #25 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.8 — better | 16.0 |
| Further details — not scored | ||
| Size | 4 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | musictheory.net | Pablo Llopis |
Customer experience
Theory Lessons
clefPlayer
Bugs and requests
Theory Lessons
Reported bugs
2 issues- Directional arrows and guidance symbols not working on iPad
- Text panels cut off at the bottom and unable to be resized
Requested features
4 requests- Add more advanced theory topics
- Incorporate practice exercises and quizzes
- Include support for other instruments beyond piano
- Integrate with the Tenuto app for a more complete experience
clefPlayer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Theory Lessons
No in-app purchases
clefPlayer
- Unlock the full experience forever$12.99
Questions
Is Theory Lessons free?
Is clefPlayer free?
Which has better reviews, Theory Lessons or clefPlayer?
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