Comparison

YouCompose vs Chorus Lesson

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

Head to head
About

YouCompose

Create original music effortlessly with an AI assistant. This app generates unique compositions using music theory and genetic algorithms, ensuring no copyright issues. It offers a wide range of built-in instruments and flexible editing tools.

Highlights
  • AI-powered music composition
  • Original, copyright-free music generation
  • 80+ built-in instrument sounds
  • Over 85 predefined ensembles
  • Multiple creation methods (keyboard, MIDI, grid, score)
  • Classical and jazz harmonization
  • Advanced editing capabilities
Read full description

Meet Aimée, your AI assistant composer, ready to help you create amazing music effortlessly. Aimée: Originality You Can Trust. In the evolving landscape of artificial intelligence and creativity, concerns about originality and copyright are paramount. Aimée, the AI-powered assistant in YouCompose, stands out by ensuring that the music she helps you create is entirely original and free from copyright issues. Aimée Doesn't Steal! Aimée's AI isn't trained on existing musical data. Instead, she generates her own unique musical content. This innovation is achieved through the clever use of an expert system that combines music theory with advanced genetic algorithms. As a result, Aimée produces truly original compositions that are not based on or derived from existing works. At the heart of Aimée's originality is an expert system grounded in comprehensive musical theoretical data. This system provides Aimée with a deep understanding of music, enabling her to compose with creativity and precision. Whether you're crafting a symphony or a simple melody, Aimée applies her theoretical knowledge to ensure your music is harmonically rich and structurally sound. Aimée also leverages genetic algorithms, which allow her to evolve and refine musical ideas through a process akin to natural selection. By iteratively improving upon initial ideas, Aimée can explore a vast space of musical possibilities, generating compositions that are both innovative and musically coherent. This approach is crucial in addressing potential copyright infringements. By not relying on pre-existing musical data, Aimée ensures that the music you create with her assistance is genuinely yours. Why Originality Matters? In the realm of music composition, originality is not just a matter of artistic integrity but also a legal necessity. Copyright infringement can lead to significant legal challenges and financial liabilities. Aimée's ability to create original music provides peace of mind, allowing you to focus on your creative process without worrying about potential legal repercussions. Features of YouCompose and Aimée: Built-in Instruments: - 80 instrument definitions with their sounds, including all regular orchestral instruments, keyboards, organs, guitars, basses, chorus, and percussion. - Over 85 predefined ensembles for quick setup, ranging from trios to orchestras. Creating and Editing: - Create melodies using the built-in virtual keyboard, a MIDI keyboard, a grid or score editor, by importing MIDI files, or by asking Aimée to generate them. - Aimée harmonizes your melodies in classical or jazz style, considering your chosen instruments. - Edit compositions by copying, pasting, moving, and deleting movements, segments, and individual notes. - Let Aimée compose a complete symphony or add new movements based on her own or your melodies. - Control harmonization with instrumentation tools, ‘Composition instructions,’ ‘Harmonization Points,’ or leave it to Aimée. - Combine classical and jazz styles within a single piece. - Special tools for entering lyrics, applying melodic transformations, and creating dynamic effects. Sharing and Saving: - Compatible with Audiobus, AudioCopy, and Inter-App Audio for seamless audio recording and integration with other apps. - CoreMIDI compatible for use with MIDI keyboards, sound modules, or synth apps. - Export audio files in MIDI, AAC, M4A, AIFF, CAF, and WAV formats, with M4A files containing iTunes data like ‘artist,’ ‘song name,’ and ‘lyrics.’ - View, print, save or export full scores and individual parts (transposed when applicable) as PDF. - Save compositions to your device, with options to share via iCloud, email, or AirDrop. - Share compositions through email with YouCompose files, audio files, MIDI files, and PDFs of scores and parts. YouCompose also includes several sample compositions featuring well-known melodies, providing a rich starting point for your musical journey.

About

Chorus Lesson

This app functions as a MIDI player designed for personal choral practice. It allows users to isolate individual parts, adjust volume and panning, and change playback speed for tailored practice sessions. Standard MIDI files can be played, with additional song data available for purchase.

Highlights
  • MIDI player for choral practice
  • Mute, solo, volume, panning per part
  • Adjustable playback speed
  • Play standard MIDI files
  • Purchase song data in-app
Features
Read full description

Chorus Lesson is a kind of MIDI player, build for the use of personal lesson of chorus. The app allows you set mute, soloed, volume, panning and instrument for each part. You may check your melody line by enabling only your part. Then, sing hearing the overall flow and sound of other parts. You may also change the playing speed, you can practice your part carefully at your suitable tempo. You can play standard MIDI files with this app. In addition, we have a Song Data Shop in this app. You can purchase and download song data in-app purchase. These songs in the shop are originally created for use with this app. Currently, the number of songs is small, but we will gradually increase it. * Some MIDI files may not be played well because of too many parts in the file. We assume a midi file contains five to six parts of SATB and accompaniment piano + some more parts. And we recommend MIDI file of format type 1, although you may still use type 0. Interchangeablitiy: We have tested MIDI files generated by applications belows and some unknown apps. Finale(mac) Notion(iPad) Nanostudio2(iPad) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

YouCompose4 screens
Chorus Lesson4 screens

Verdict

The call

The clearest difference is review sentiment: YouCompose at 70% against Chorus Lesson's 0%. YouCompose also leads on in-app purchases (none vs 10) and device support (4 vs 1). Chorus Lesson's advantage is price ($2.99 vs $12.99) and update cadence (every 2 weeks vs every 4 months). On ads 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

YouCompose costs $12.99 and Chorus Lesson $2.99 up front. Chorus Lesson sells 10 one-off in-app purchases. YouCompose asks for nothing beyond the download.

UpkeepUpdate frequency

YouCompose ships an update every 4 months, Chorus Lesson every 2 weeks. The most recent releases landed on November 5, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
YouCompose versus Chorus Lesson: the parameters behind the verdict, then further details
ParameterYouComposeChorus Lesson
Price$12.99$2.99 — better
Rating4.4 (35 ratings) — better—
Positive reviews70.0% of reviews — better0.0% of reviews
Number of ratings35 — better—
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS14.0 — better26.0
Further details — not scored
Size399 MB228 MB
Age rating4+4+
DeveloperElstarNOKKEUSI Inc.

Customer experience

YouCompose

All ratings35 ratings
Positive80.0%
Neutral11.4%
Negative8.6%
Written reviews50 reviews
Positive70.0%
Neutral12.0%
Negative18.0%

Chorus Lesson

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

YouCompose

No in-app purchases

10 purchases

Chorus Lesson

One-time10
  • 30-days Trial for freeFree
  • BWV227 All throughFree
  • BWV226-1 Bars 1-145Free
Show 7 more
  • Trial for 14 daysFree
  • BWV226-2 Bars146-244$0.99
  • BWV226-3 Bars245-268$0.99
  • BWV226 Complete set$0.99
  • BWV225 Complete set$0.99
  • BWV228; Fürchte dich nicht,...$0.99
  • BWV229; Komm, Jesu, komm$0.99

Questions

Is YouCompose free?
YouCompose costs $12.99, with no in-app purchases.
Is Chorus Lesson free?
Chorus Lesson costs $2.99, and also offers in-app purchases.
Do YouCompose or Chorus Lesson have ads?
Neither YouCompose nor Chorus Lesson shows ads.
Which is updated more often, YouCompose or Chorus Lesson?
YouCompose ships an update every 4 months, and Chorus Lesson every 2 weeks. Most recently, YouCompose was updated on November 5, 2026 and Chorus Lesson on November 3, 2026.

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