E vs Transpose Piano
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
E
Learn jazz guitar with practical, step-by-step lessons covering chords, progressions, and substitutions. This course is designed for intermediate players looking to understand jazz concepts without overwhelming theory.
- Step-by-step jazz guitar lessons
- Covers chords and progressions
- Includes theory, tips, tabs, and video
- Explains chord embellishments and substitutions
- Learn to create own jazz chord progressions
- Lessons inspired by jazz standards
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Discovering Jazz Guitar A practical introduction to jazz guitar β without getting lost in theory (or in your own fingers). Understand jazz chords and progressions with step-by-step lessons inspired by jazz standards, from Classic Jazz to Brazilian and Gypsy Jazz. This course is designed for beginners in jazz: youβll learn real concepts and how to use them. Itβs not a βfirst guitarβ course though β you should already be comfortable with basic chords and basic rhythm (changing chords in time). Whatβs inside: 8 lessons with a gradual increase in difficulty. For each lesson: theory, tips, tabs, and video. Learn chord embellishments, diatonic substitution, and tritone substitution. Understand how to create your own jazz chord progressions. Lesson 1 β Jazz Chords Jazz chords built from the major scale. IIβVβI chord changes in G and C. Introduction to walking bass. Lesson 2 β IIβVβI Progression Using the major scale in progressions. Chord embellishment. The diminished chord. Lesson 3 β Changing Key Find IIβVβI in multiple keys. Chord roots on the E and A strings. Lesson 4 β More Chord Movement Diatonic substitution. Secondary dominants. Cycle of fifths. Triads and tetrads. Lesson 5 β Tritone Substitution Tritone substitution in context. 11th and 13th chords. Practical fingerings. Lesson 6 β Blues for Clara From a traditional 12-bar blues to a richer form. 9th and 13th chords. Lesson 7 β Gypsy Swing Gypsy Jazz rhythm fundamentals. Major and minor 6th chords. Lesson 8 β Sunny Bossa Bossa Nova rhythm pattern. Using substitutions to color progressions.
Transpose Piano
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Transpose Piano requires a Monthly Premium auto-renewable subscription to access the piano and transposition features. Users receive a 7-day free trial. After the trial, the subscription renews at $4.99 per month (or the equivalent price in your region) unless canceled. Payment is charged to your Apple ID account. Cancel anytime in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Transpose Piano at every 3 weeks against E's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. E sells 1 one-off in-app purchase and Transpose Piano sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
E ships an update every 3 months, Transpose Piano every 3 weeks. The most recent releases landed on June 2, 2026 and September 22, 2026 respectively.
| Parameter | E | Transpose Piano |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | β |
| Update frequency | Every 3 months | Every 3 weeks β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | β |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.0 β better |
| Further details β not scored | ||
| Size | 203 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | David Palmerio | ζ¨ ι» |
In-app purchases
E
- Full Access$3.99
Transpose Piano
- Transpose Piano Monthly7 Days trial$4.991 Month







