# Chopsy vs NotationAI

The clearest difference is update cadence: NotationAI at every 11 days against Chopsy's every 2 months. Chopsy's advantage is iOS requirement (15.0 vs 17). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Chopsy sells 5 in-app purchases, starting at $9.99 per 7 days and NotationAI sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Chopsy ships an update every 2 months, NotationAI every 11 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Chopsy | NotationAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Size | 66 MB | 137 MB |
| Requires iOS | **15.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Siarhei Hvazdou](https://appshunter.io/developer/1772466511) | [旋炜 李](https://appshunter.io/developer/1513565202) |

## What reviewers say

### Chopsy

[App page](https://appshunter.io/ios/app/chopsy-drum-coach-ai-practice/id6736569598)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro with 7-day free trial | $9.99 | per 7 days |
| Monthly Pro | $19.99 | per month |
| Monthly Premium Pro | $19.99 | per month |
| Annual Pro | $49.99 | per year |
| Annual Premium Pro | $49.99 | per year |


### NotationAI

[App page](https://appshunter.io/ios/app/notationai-music-scanner/id6780883229)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NotationAI Pro Monthly | $7.99 | per month |
| NotationAI Pro Quarterly | $20.99 | per 3 months |
| NotationAI Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is Chopsy free?

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

### Is NotationAI free?

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

### Do Chopsy or NotationAI have ads?

Neither Chopsy nor NotationAI shows ads.

### Which is updated more often, Chopsy or NotationAI?

Chopsy ships an update every 2 months, and NotationAI every 11 days. Most recently, Chopsy was updated on November 8, 2026 and NotationAI 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.*