Comparison

Theory Lessons vs MusiClock

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

Head to head
About

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.

Highlights
  • 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
Read full description

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

About

MusiClock

This app simplifies music theory and scales for guitar and piano players. It helps users practice improvisation, soloing, and jamming with interactive tools and backing tracks. Learn scales and transpose to different keys instantly, even without prior music theory knowledge.

Highlights
  • Scale charts for guitar
  • Interactive piano
  • 8 different scales
  • Professional backing tracks
  • Instant key transposition
  • Jamming and soloing practice
Features
Read full description

*** Featured by Apple in "Best New Apps" *** *** #1 Paid Music App in 9 countries *** *** #1 Prize in Expressing Category, Interaction Awards 2017, New York *** WHAT GLOBAL APP REVIEWERS SAY ABOUT MUSICLOCK: “This app is pure genius, and in my 20 years of playing music I have never seen anything like it.” - apptreasurehunter.com "Apple loves this music app. You will too." - MacLife "This is incredibly useful, it teaches you how to play in all the different keys and scales... Super duper idea, fabulous for jamming and great for learning as well.. brilliant" - thesoundtestroom "If you want to teach improvisation to students of any age, this is a wonderful app" - techinmusiced.com "Slice of genius – Musiclock nails making music theory and scales far more approachable, providing a helping first step for total beginners, and a useful resource tool for musicians to dip into" - TapSmart "The key to making music that sounds good (–) is rooted in first finding (and playing) all those correct notes. MusiClock can definitely help in this regard" - iPhoneLife "As a rock and blues guitar player whose idea of relaxation is just having a good noodle, Musiclock is a pleasure to use. It can give your practice sessions a little bit of structure but without it feeling like a classroom music theory session" - musicappblog.com ------ *The ultimate scale tool & jam buddy for guitar and piano players* MusiClock is an easy-to-use improvisation tool that makes it dead easy to practice scales, jamming and soloing with a guitar or piano. Our award-winning approach helps you to hit all the right notes so that you can get jamming within seconds without any prior music theory training. REVOLUTIONARY LOGIC MusiClock transforms the complexity of different notes, scales and keys into a simple and powerful jam tool.The beautifully simple MusiClock enables you to jam with piano or guitar right away without prior knowledge of music theory. With the help of the revolutionary design, you can master all the scales you need for jamming in no time. Practice and expand your playing skills easily to more challenging keys – just rotate the wheel and you can transpose your jam instantly to any key. PLAY THE LEADS WITH PROFESSIONAL BACKING TRACKS Practice and play along with professional backing tracks. MusiClock features multiple tunes from various genres. Choose your favorite from pop, rock, heavy metal and more. Start playing leads with your favorite musical style in seconds. SPICE UP YOUR GROOVE Create new melodies by mixing different scales and backing tracks together. How would those delicious blues licks merge with heavy metal? What about mashing up bepop melodies with pop? However you choose to explore your creativity, MusiClock takes your jamming to the next level. FEATURES - Over 1000 easy-to-read guitar charts (require iOS 8 or higher!) - Interactive piano - 8 scales: Major, Natural Minor, Major Pentatonic, Minor, Pentatonic, Melodic Minor, Harmonic Minor, Blues, Dominant Bepop - 12 different keys for every scale and backing track - Professional backing tracks (pop, rock, blues, metal, jazz, dance, classical) - Staff showing notes and scales - Intuitive & beautifully simple design Follow us on - Facebook www.facebook.com/mymusiclock - Twitter https://twitter.com/mymusiclock - Instagram https://instagram.com/musiclock/ - Website www.getmusiclock.com FEEDBACK What was your jamming experience like? Let us know! Feel free to send us any questions/feedback at hello@mymusiclock.com.

Screenshots

Theory Lessons4 screens
MusiClock4 screens

Verdict

The call

The clearest difference is rating: Theory Lessons at 4.4 against MusiClock's 3.6. Theory Lessons also leads on price ($2.99 vs $8.99) and review sentiment (83% vs 59%). MusiClock's advantage is update cadence (every 5 weeks vs every 4 months) and iOS requirement (7.1 vs 15.8). On ads, in-app purchases 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

Theory Lessons costs $2.99 and MusiClock $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Theory Lessons holds the better App Store score, 4.4 against 3.6. Both are backed by a comparable volume of ratings — 126 and 31 respectively. Written reviews point the same way: 83% of Theory Lessons's written reviews are positive against 59% of MusiClock's.

UpkeepUpdate frequency

Theory Lessons ships an update every 4 months, MusiClock every 5 weeks. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.

Scorecard8 real differences · 3 level
Theory Lessons versus MusiClock: the parameters behind the verdict, then further details
ParameterTheory LessonsMusiClock
Price$2.99 — better$8.99
Rating4.4 (126 ratings) — better3.6 (31 ratings)
Positive reviews83.1% of reviews — better59.5% of reviews
Number of ratings126 — better31
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#13 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.87.1 — better
Further details — not scored
Size4 MB102 MB
Age rating4+4+
Developermusictheory.netperTunes Oy

Customer experience

Theory Lessons

All ratings126 ratings
Positive84.1%
Neutral7.9%
Negative7.9%
Written reviews154 reviews
Positive83.1%
Neutral5.8%
Negative11.0%

MusiClock

All ratings31 ratings
Positive64.5%
Neutral9.7%
Negative25.8%
Written reviews37 reviews
Positive59.5%
Neutral10.8%
Negative29.7%

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

MusiClock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Theory Lessons

No in-app purchases

None

MusiClock

No in-app purchases

Questions

Is Theory Lessons free?
Theory Lessons costs $2.99, with no in-app purchases.
Is MusiClock free?
MusiClock costs $8.99, with no in-app purchases.
Which has better reviews, Theory Lessons or MusiClock?
Theory Lessons is rated higher. Theory Lessons averages 4.4 out of 5 from 126 ratings, while MusiClock averages 3.6 from 31 ratings.
Do Theory Lessons or MusiClock have ads?
Neither Theory Lessons nor MusiClock shows ads.
Which is updated more often, Theory Lessons or MusiClock?
Theory Lessons ships an update every 4 months, and MusiClock every 5 weeks. Most recently, Theory Lessons was updated on October 26, 2026 and MusiClock on October 23, 2026.

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