# Bacteria Music vs ChoirXML

The clearest difference is update cadence: Bacteria Music at every 2 days against ChoirXML's every 6 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bacteria Music ships an update every 2 days, ChoirXML every 6 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Bacteria Music | ChoirXML |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/choirxml/id6820900693/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 days |
| Monetization | — | Free |
| Size | 3 MB | 13 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Soundtron Studios LLC](https://appshunter.io/developer/6787320351) | [Jonathan Froese](https://appshunter.io/developer/6813776185) |

## What reviewers say

### Bacteria Music

[App page](https://appshunter.io/ios/app/bacteria-music/id6787320349)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChoirXML

[App page](https://appshunter.io/ios/app/choirxml/id6820900693)

Transform printed sheet music into an editable digital format. Convert PDFs, scans, or photos into MusicXML, allowing playback, transposition, and sharing with notation apps. All processing is done locally on your device.

**Highlights:** Import sheet music from PDF, images, or camera, Automatic page straightening, Recognizes notes, rests, dynamics, and lyrics, Editable score with bar-by-bar correction, Playback with piano and choir sounds, Export to MusicXML for notation apps, On-device processing for privacy

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

**In-app purchases:** none


## Frequently asked questions

### Is Bacteria Music free?

Bacteria Music is free to download, with no in-app purchases.

### Is ChoirXML free?

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

### Do Bacteria Music or ChoirXML have ads?

Neither Bacteria Music nor ChoirXML shows ads.

### Which is updated more often, Bacteria Music or ChoirXML?

Bacteria Music ships an update every 2 days, and ChoirXML every 6 days. Most recently, Bacteria Music was updated on October 31, 2026 and ChoirXML on November 6, 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.*