Clustering vs Chorus Lesson
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Clustering
This music practice tool allows improvisers to set up chordal structures and use them as practice material. Explore root movements through various cycles to discover new musical ideas and enhance your practice routine.
- Set up chordal structures
- Use clusters for practice
- Explore root movements
- Practice through cycles (fourths, chromatic)
- Enhance musical practice
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Clustering is a musical practice tool for iOS. It lets you setup a cluster (or any chordal structure) and use it for practice material. By taking the cluster through a series of root movements, you can bring some fun and interesting discoveries into your practicing. I've always found clusters to be very inspiring and challenging. Take an inspiring chord/sound through the cycle of fourths, or chromatically or just repeat it. It's such a great way to enhance your practicing.
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.
- MIDI player for choral practice
- Mute, solo, volume, panning per part
- Adjustable playback speed
- Play standard MIDI files
- Purchase song data in-app
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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
Verdict
The clearest difference is in-app purchases: Clustering at none against Chorus Lesson's 10. Clustering also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.0). Chorus Lesson's advantage is update cadence (every 2 weeks vs every 5 months) and price ($2.99 vs $5.99). On review sentiment and ads 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
Clustering costs $5.99 and Chorus Lesson $2.99 up front. Chorus Lesson sells 10 one-off in-app purchases. Clustering asks for nothing beyond the download.
Clustering ships an update every 5 months, Chorus Lesson every 2 weeks. The most recent releases landed on June 1, 2026 and October 16, 2026 respectively.
| Parameter | Clustering | Chorus Lesson |
|---|---|---|
| Price | $5.99 | $2.99 β better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Update frequency | Every 5 months | Every 2 weeks β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Monetization | Paid | Free with in-app purchases β better |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.6 β better | 26.0 |
| Further details β not scored | ||
| Size | 60 MB | 228 MB |
| Age rating | 4+ | 4+ |
| Developer | tingjing.com | NOKKEUSI Inc. |
Customer experience
Clustering
Chorus Lesson
In-app purchases
Clustering
No in-app purchases
Chorus Lesson
- 30-days Trial for freeFree
- BWV227 All throughFree
- BWV226-1 Bars 1-145Free
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- 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; FΓΌrchte dich nicht,...$0.99
- BWV229; Komm, Jesu, komm$0.99









