# Choral Lab vs Chords Weaver

The clearest difference is price: Chords Weaver at Free against Choral Lab's $6.99. Chords Weaver also leads on update cadence (every 5 days vs every 6 weeks) and iOS requirement (15.0 vs 17.0). Choral Lab's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Chords Weaver is free to download; Choral Lab costs $6.99 up front. Chords Weaver sells 1 one-off in-app purchase. Choral Lab asks for nothing beyond the download.

Choral Lab ships an update every 6 weeks, Chords Weaver every 5 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Choral Lab | Chords Weaver |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/choral-lab/id6782184585/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Paid | — |
| Size | 186 MB | 33 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) | [Loup Vuarnesson](https://appshunter.io/developer/1888506646) |

## 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


### Chords Weaver

[App page](https://appshunter.io/ios/app/chords-weaver/id6787991938)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chords Weaver Pro | $5.99 | one-time |


## Frequently asked questions

### Is Choral Lab free?

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

### Is Chords Weaver free?

Chords Weaver is free to download, with in-app purchases available.

### Do Choral Lab or Chords Weaver have ads?

Neither Choral Lab nor Chords Weaver shows ads.

### Which is updated more often, Choral Lab or Chords Weaver?

Choral Lab ships an update every 6 weeks, and Chords Weaver every 5 days. Most recently, Choral Lab was updated on October 31, 2026 and Chords Weaver on October 31, 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.*