Comparison

Soniq Viewer 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

Soniq Viewer

This app visualizes sound frequencies using your device's microphone. It displays the pitch of your voice and music on an equally-tempered musical scale, with adjustable input sensitivity and up to 60 frames per second.

Highlights
  • Frequency spectrum visualization
  • Microphone audio input
  • Pitch detection
  • Equally-tempered musical scale display
  • Adjustable input sensitivity
  • High frame rate display (up to 60 fps)
Features
Read full description

Soniq Viewer is a frequency spectrum visualizer. It uses a microphone to pick up audio to draw. You can easily see the pitch of your voice. ================================================== * To play and visualize the music in iPod Library, use "Soniq Player". * Requires a microphone(built-in mic or earphones with mic). ================================================== Features - Spectrum is displayed relative to an equally-tempered musical frequency scale. - Supports input sensitivity setting. - Spectrum is displayed up to 60 frames per seconds.

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

Soniq Viewer2 screens
Chorus Lesson4 screens

Verdict

The call

The clearest difference is review sentiment: Soniq Viewer at 100% against Chorus Lesson's 0%. Soniq Viewer also leads on in-app purchases (none vs 10) and device support (3 vs 1). Chorus Lesson's advantage is update cadence (every 2 weeks vs every 20 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

Soniq Viewer costs $1.99 and Chorus Lesson $2.99 up front. Chorus Lesson sells 10 one-off in-app purchases. Soniq Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

Soniq Viewer ships an update every 20 months, Chorus Lesson every 2 weeks. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

Scorecard7 real differences · 3 level
Soniq Viewer versus Chorus Lesson: the parameters behind the verdict, then further details
ParameterSoniq ViewerChorus Lesson
Price$1.99 — better$2.99
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 20 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better26.0
Further details — not scored
Size1 MB228 MB
Age rating4+4+
DeveloperYuji KoikeNOKKEUSI Inc.

Customer experience

Soniq Viewer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Chorus Lesson

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

In-app purchases

None

Soniq Viewer

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 Soniq Viewer free?
Soniq Viewer costs $1.99, with no in-app purchases.
Is Chorus Lesson free?
Chorus Lesson costs $2.99, and also offers in-app purchases.
Do Soniq Viewer or Chorus Lesson have ads?
Neither Soniq Viewer nor Chorus Lesson shows ads.
Which is updated more often, Soniq Viewer or Chorus Lesson?
Soniq Viewer ships an update every 20 months, and Chorus Lesson every 2 weeks. Most recently, Soniq Viewer was updated on October 23, 2026 and Chorus Lesson on October 29, 2026.

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