Comparison

Theory Lessons vs Functional Ear Trainer

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

Functional Ear Trainer

Develop your musical ear by learning to recognize tones within the context of a specific musical key. This app helps you understand the function of each note, improving your ability to transcribe, improvise, and play music by ear. Suitable for all ages and skill levels, with just 10 minutes of daily practice.

Highlights
  • Recognize tones in musical key context
  • Understand note function
  • Improve transcription skills
  • Enhance improvisation
  • Develop perfect pitch
  • Daily 10-minute practice
Features
Read full description

Have you (or maybe one of your friends) ever wanted to learn to transcribe or play music by ear? It is so important for a musician to know what you are hearing. A good musical ear helps when you are composing, improvising, transcribing melodies, or playing with others. Most likely you have already tried different programs to learn to recognize intervals or even to acquire perfect pitch. However, although such programs develop your ear, but can you actually play any melody you hear as soon as you listen to it? Imagine you could understand music... It is like when somebody is talking to you, you not only hear pleasant sounds, but you recognize words and their meaning. One day I came across Alain Benbassat's program called "Functional Ear Trainer" and have been using it ever since. It is based on Alain's method to learn to recognize tones. The main difference between the Functional Ear Trainer and other methods is that it teaches you to distinguish between tones in the context of a particular musical key. You begin to recognize the role (or function) of each tone in this key, which is incredibly similar to its role in other keys of the same scale. And it is *guaranteed* anyone can gradually develop this skill. It does not matter: - who you are - an absolute beginner in music or a virtuoso professional musician; - how old you are - a 3 yo kid or a 90+ adult; - what musical instrument you play (you don't even have to play one). The only requirement is to practice for 10 minutes a day. I was so excited about this ear trainer that I have developed a mobile app based on the Alain Benbassat method. I hope you will find it useful.

Screenshots

Theory Lessons4 screens
Functional Ear Trainer4 screens

Verdict

The call

The clearest difference is price: Functional Ear Trainer at Free against Theory Lessons's $2.99. Functional Ear Trainer also leads on rating (4.9 vs 4.4) and ratings volume (3.7K vs 126). Theory Lessons's advantage is in-app purchases (none vs 1) and chart position (#17 vs unranked). On update cadence, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Functional Ear Trainer is free to download; Theory Lessons costs $2.99 up front. Functional Ear Trainer sells 1 one-off in-app purchase. Theory Lessons asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Functional Ear Trainer holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: Functional Ear Trainer has 3.7K ratings behind it against 126, so its average is the more settled of the two. Written reviews point the same way: 83% of Theory Lessons's written reviews are positive against 96% of Functional Ear Trainer's.

UpkeepUpdate frequency

Theory Lessons ships an update every 4 months, Functional Ear Trainer every 7 months. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

Scorecard7 real differences · 4 level
Theory Lessons versus Functional Ear Trainer: the parameters behind the verdict, then further details
ParameterTheory LessonsFunctional Ear Trainer
Price$2.99Free — better
Rating4.4 (126 ratings)4.9 (3.7K ratings) — better
Positive reviews83.1% of reviews96.1% of reviews — better
Number of ratings1263.7K — better
Update frequencyEvery 4 months — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#17 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.815.0 — better
Further details — not scored
Size4 MB41 MB
Age rating4+4+
Developermusictheory.netSerhii Korchan

Customer experience

Theory Lessons

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

Functional Ear Trainer

All ratings3,749 ratings
Positive98.1%
Neutral0.8%
Negative1.1%
Written reviews623 reviews
Positive96.1%
Neutral1.9%
Negative1.9%

User reviews

Theory Lessons

From 126 App Store ratings

What we love

  • 🚀 Efficient and easy to use
  • 👍 Clear and concise explanations
  • 💡 Helpful visual aids and animations
  • 🤩 Excellent learning tool for beginners
  • 🔍 Comprehensive coverage of music theory

Room to improve

  • 🐛 Audio issues on some devices
  • 🔍 Limited content compared to website
  • 🤔 Keyboard-centric approach may not suit non-pianists
  • 💰 Paid app when website is free

Functional Ear Trainer

From 3.7K App Store ratings

What we love

  • 🚀 Effective ear training
  • 👍 Simple and intuitive interface
  • 💡 Customizable exercises
  • 🎉 Noticeable improvement with regular practice
  • 🎨 Visually appealing design

Room to improve

  • 🐛 Occasional audio glitches
  • 💡 Lack of support for other instruments besides piano
  • 💡 Desire for more advanced features (e.g. chord recognition)

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

Functional Ear Trainer

Reported bugs

2 issues
  • Keyboard display issues when selecting all chromatic notes
  • Inconsistent note resolutions in some exercises

Requested features

5 requests
  • Add support for multiple notes/chords at once
  • Implement a mode for training key recognition
  • Provide more customization options for exercises
  • Include voice input to play the notes
  • Add support for German/Norwegian key names

In-app purchases

None

Theory Lessons

No in-app purchases

1 purchases

Functional Ear Trainer

One-time1
  • Functional Ear Trainer Plus$19.99

Questions

Is Theory Lessons free?
Theory Lessons costs $2.99, with no in-app purchases.
Is Functional Ear Trainer free?
Functional Ear Trainer is free to download, with in-app purchases available.
Which has better reviews, Theory Lessons or Functional Ear Trainer?
Functional Ear Trainer is rated higher. Theory Lessons averages 4.4 out of 5 from 126 ratings, while Functional Ear Trainer averages 4.9 from 3.7K ratings.
Do Theory Lessons or Functional Ear Trainer have ads?
Neither Theory Lessons nor Functional Ear Trainer shows ads.
Which is updated more often, Theory Lessons or Functional Ear Trainer?
Theory Lessons ships an update every 4 months, and Functional Ear Trainer every 7 months. Most recently, Theory Lessons was updated on October 15, 2026 and Functional Ear Trainer on October 16, 2026.

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