# Choral Lab vs ARPJAM Player

The clearest difference is price: ARPJAM Player at Free against Choral Lab's $6.99. ARPJAM Player also leads on update cadence (every 2 days vs every 6 weeks) and iOS requirement (15.0 vs 17.0). On rating, ratings volume, ads and in-app purchases there is nothing between them.

ARPJAM Player is free to download; Choral Lab costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Choral Lab against 5.0 for ARPJAM Player. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Choral Lab ships an update every 6 weeks, ARPJAM Player every 2 days. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Choral Lab | ARPJAM Player |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/choral-lab/id6782184585/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/arpjam-player/id6805495513/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | Paid | **Free** |
| Size | 186 MB | 78 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Martin Adler](https://appshunter.io/developer/1896354791) | [Takashi Tsunoda](https://appshunter.io/developer/1884742586) |

## What reviewers say

### Choral Lab

[App page](https://appshunter.io/ios/app/choral-lab/id6782184585)

Compose and study Bach-style four-part chorales. Harmonize melodies with automatic voice generation, explore a library of 410 Bach chorales, and analyze chords in real-time. Offers both score and piano roll views for detailed study.

**Highlights:** Automatic SATB harmonization in Bach style, Library of 410 J.S. Bach chorales, Interactive soprano piano roll, Real-time chord analysis, Score and piano roll views, MIDI export

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ARPJAM Player

[App page](https://appshunter.io/ios/app/arpjam-player/id6805495513)

This app allows you to queue music tracks and set individual playback durations. It automatically fades out the current track and transitions to the next, ensuring consistent loudness and background playback. Explore a library of published tracks or import your own.

**Highlights:** Queue and time music tracks, Automatic track fading and transition, Matched loudness for consistent volume, Background playback with screen off, Browse and import music library, Dynamic music generation engine

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Choral Lab free?

Choral Lab costs $6.99, with no in-app purchases.

### Is ARPJAM Player free?

ARPJAM Player is free to download, with no in-app purchases.

### Which has better reviews, Choral Lab or ARPJAM Player?

Choral Lab and ARPJAM Player are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Choral Lab or ARPJAM Player have ads?

Neither Choral Lab nor ARPJAM Player shows ads.

### Which is updated more often, Choral Lab or ARPJAM Player?

Choral Lab ships an update every 6 weeks, and ARPJAM Player every 2 days. Most recently, Choral Lab was updated on October 13, 2026 and ARPJAM Player on October 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*