# Tromix vs Choral Lab

The clearest difference is price: Tromix at Free against Choral Lab's $6.99. Choral Lab's advantage is in-app purchases (none vs 4). On rating, ratings volume, update cadence and ads there is nothing between them.

Tromix is free to download; Choral Lab costs $6.99 up front. Tromix sells 4 in-app purchases, starting at $0.99 per month. Choral Lab asks for nothing beyond the download.

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

Tromix ships an update monthly, Choral Lab every 6 weeks. The most recent releases landed on October 22, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Tromix | Choral Lab |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/tromix/id6758303662/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/choral-lab/id6782184585/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | **Freemium** | Paid |
| Size | 12 MB | 186 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [金承 谢](https://appshunter.io/developer/1872086991) | [Martin Adler](https://appshunter.io/developer/1896354791) |

## What reviewers say

### Tromix

[App page](https://appshunter.io/ios/app/tromix/id6758303662)

This comprehensive music tool offers a precision metronome, a 16-track drum machine with custom sample import, and a professional tuner. It also features a smart training system with multi-day plans and various exercise modes to enhance musical skills.

**Highlights:** Precision metronome with custom time signatures, 16-track drum machine with sample import, Professional tuner with pitch history, Smart training plans and exercises, Polyrhythm and ghost mode for rhythm training, Setlist management and performance HUD, iCloud sync across devices

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Quarterly | $1.99 | per 3 months |
| Pro Yearly | $5.99 | per year |
| Pro Lifetime | $9.99 | one-time |


### 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


## Frequently asked questions

### Is Tromix free?

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

### Is Choral Lab free?

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

### Which has better reviews, Tromix or Choral Lab?

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

### Do Tromix or Choral Lab have ads?

Neither Tromix nor Choral Lab shows ads.

### Which is updated more often, Tromix or Choral Lab?

Tromix ships an update monthly, and Choral Lab every 6 weeks. Most recently, Tromix was updated on October 22, 2026 and Choral Lab on October 13, 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.*