Music Theory Advanced vs Keys Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Music Theory Advanced
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Music theory tests: Notes (Notation / Piano), Key Signatures, Intervals, Chords, and Rhythms, covering basic musicianship at an advanced level. Includes a 'Grade Book' list of all saved results that you can print or share. • Notes, Intervals and Chords include an Ear Training mode that quizzes by audio only, while Rhythms is customizable from easy to nearly impossible. • All pitched quizzes support Treble, Alto, Tenor and Bass clefs. • Interval and chord roots pitches can be random or set before each question. • Set a specific number of questions or grade only the number answered. Notes module tests music notation and piano keyboard knowledge. Key Signatures covers major and minor keys as well as the seven diatonic modes. Set separate maximum number of sharps or flats for the quiz. Intervals includes simple and compound intervals played harmonically, melodically up or down. Intervals covered are major, minor, diminished, augmented 2nds, 3rds, 6ths, 7ths, and diminished, perfect, and augmented 4ths, 5ths, and octaves. Chords include triads and seventh chords played harmonically, melodically up, down or broken. Triads are major, minor diminished and augmented. Seventh Chords are dim7, min7(b5), min7, min(maj7), dominant7, maj7, dominant7(#5), maj7(#5). Rhythms tests your rhythmic and polyrhythmic skills. Develop hand independence with two lines of rhythms. - Customizable options include; up to 16 measures in 2/4, 3/4, 4/4 or 5/4, one or two lines of rhythms, each with up to 3 pitches, include specific note/rest values, and exclude grading durations (for percussionists). - Included note/rest values: Whole, Half, Quarter, Eighth, Sixteenth, Dotted Half, Dotted Quarter, Dotted Eighth, Triplet Half, Triplet Quarter, and Triplet Eighth. The Grade Book is filterable by name and subject. Grades include the name, date and time the quiz was taken, all relevant settings (clef, number of questions, etc.), and score (percentage and letter grade).
Keys Trainer
Master key signatures and scales with this music learning app. Practice identifying keys, understanding note sharps/flats, and instantly recognizing scale layouts on a keyboard. Features include customizable practice, passive viewing, and a challenging game mode.
- Key signature recognition
- Scale layout identification
- Customizable learning range
- Intelligent training based on performance
- Practice, View, Game, and Search modes
- Earn coins, medals, and trophies
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Do you want to be capable of recognizing the key signatures at first sight? That is, when you see a key signature, you know what key it is and what notes should be sharp or flat immediately. Do you want to have the ability of instantly identifying the scale layout on a piano/keyboard for a given key? If your answer is yes, check out this app. It can help you acquire these skills which can definitely benefit your music learning and piano playing. Main Features: • Practice Mode You learn at your own pace simply by answering the question, and if you are wrong, the correct answer will be shown for the duration of your choice. • View Mode You don’t need to do anything but watching, the questions and answers will be shown automatically after the delay of your choice. Good for lazy people like me. • Game Mode In this exciting countdown mode, you can challenge yourself and earn as many coins, medals, and trophies as you can. • Search Mode This mode allows you to look up the keys by name, key signature or keyboard. • Learning Range Customization You can customize your learning range sot that you can focus on improving your weaknesses. • Intelligent Training Each question is generated intelligently based on the statistical information of your performance so that it can turn your weaknesses into strengths.
Screenshots
Verdict
The clearest difference is price: Keys Trainer at $2.99 against Music Theory Advanced's $4.99. Keys Trainer also leads on device support (3 vs 1) and iOS requirement (12.0 vs 26.0). On update cadence, ads and in-app purchases 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
Music Theory Advanced costs $4.99 and Keys Trainer $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Music Theory Advanced ships an update every 18 months, Keys Trainer every 9 months. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.
| Parameter | Music Theory Advanced | Keys Trainer |
|---|---|---|
| Price | $4.99 | $2.99 — better |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 18 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Patrick Q. Kelly | Plearn LLC |
In-app purchases
Music Theory Advanced
No in-app purchases
Keys Trainer
No in-app purchases
Questions
Is Music Theory Advanced free?
Is Keys Trainer free?
Do Music Theory Advanced or Keys Trainer have ads?
Which is updated more often, Music Theory Advanced or Keys Trainer?
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