Comparison

E vs Transpose Piano

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

Discovering Jazz Guitar A practical introduction to jazz guitar — 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: you’ll learn real concepts and how to use them. It’s not a “first guitar” course though — you should already be comfortable with basic chords and basic rhythm (changing chords in time). What’s 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 — Jazz Chords Jazz chords built from the major scale. II–V–I chord changes in G and C. Introduction to walking bass. Lesson 2 — II–V–I Progression Using the major scale in progressions. Chord embellishment. The diminished chord. Lesson 3 — Changing Key Find II–V–I in multiple keys. Chord roots on the E and A strings. Lesson 4 — More Chord Movement Diatonic substitution. Secondary dominants. Cycle of fifths. Triads and tetrads. Lesson 5 — Tritone Substitution Tritone substitution in context. 11th and 13th chords. Practical fingerings. Lesson 6 — Blues for Clara From a traditional 12-bar blues to a richer form. 9th and 13th chords. Lesson 7 — Gypsy Swing Gypsy Jazz rhythm fundamentals. Major and minor 6th chords. Lesson 8 — Sunny Bossa Bossa Nova rhythm pattern. Using substitutions to color progressions.

About

Transpose Piano

Features
Read full description

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

E4 screens
Transpose Piano1 screens

Verdict

The call

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 · 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

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.

UpkeepUpdate frequency

E ships an update every 3 months, Transpose Piano every 3 weeks. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

Scorecard1 real difference · 7 level
E versus Transpose Piano: the parameters behind the verdict, then further details
ParameterETranspose Piano
PriceFreeFree
Positive reviews57.1% of reviews—
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.616.0 — better
Further details — not scored
Size203 MB1 MB
Age rating4+4+
DeveloperDavid Palmerio晨 黄

In-app purchases

1 purchases

E

One-time1
  • Full Access$3.99
1 purchases

Transpose Piano

Subscriptions1
  • Transpose Piano Monthly7 Days trial$4.991 Month

Questions

Is E free?
E is free to download, with in-app purchases available.
Is Transpose Piano free?
Transpose Piano is free to download, with in-app purchases available.
Do E or Transpose Piano have ads?
Neither E nor Transpose Piano shows ads.
Which is updated more often, E or Transpose Piano?
E ships an update every 3 months, and Transpose Piano every 3 weeks. Most recently, E was updated on October 13, 2026 and Transpose Piano on October 6, 2026.

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