# JamKoo vs Numbered Musical Notation

The clearest difference is iOS requirement: JamKoo at 12.0 against Numbered Musical Notation's 14.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. JamKoo sells 9 in-app purchases, starting at $0.99 per month and Numbered Musical Notation sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

JamKoo ships an update every 4 weeks, Numbered Musical Notation every 6 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | JamKoo | Numbered Musical Notation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (39 ratings)](https://appshunter.io/ios/app/jamkoo-lets-perform-music/id1457240484/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 6 weeks |
| Monetization | Freemium | — |
| Size | 288 MB | 158 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Robkoo Information & Technologies Co., Ltd.](https://appshunter.io/developer/987892941) | [荣庄 杨](https://appshunter.io/developer/1538534798) |

## What reviewers say

### JamKoo

[App page](https://appshunter.io/ios/app/jamkoo-lets-perform-music/id1457240484)

Create and record music with realistic virtual instruments. Mix backing tracks, practice with various instruments, and share your performances with a community. Supports MIDI controllers and custom instrument libraries.

**Highlights:** Realistic virtual instruments, MIDI controller support, Backing track mixing and recording, Custom instrument library import, Layered recording, MP3 export, Score import and viewing

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JamKoo Premium (monthly) | $0.99 | per month |
| JamKoo Premium (quarterly) | $0.99 | per 3 months |
| JamKoo Premium (yearly) | $0.99 | per year |
| Taste of Fireworks | Free | one-time |
| Shakuhachi | $0.99 | one-time |
| Kong Audio Erhu | $1.99 | one-time |
| Kong Audio Qudi | $1.99 | one-time |
| Kong Audio Hulusi | $1.99 | one-time |
| Kong Audio Suona | $1.99 | one-time |


### Numbered Musical Notation

[App page](https://appshunter.io/ios/app/numbered-musical-notation/id1638269166)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 版本 | $12.99 | one-time |


## Frequently asked questions

### Is JamKoo free?

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

### Is Numbered Musical Notation free?

Numbered Musical Notation is free to download, with in-app purchases available.

### Do JamKoo or Numbered Musical Notation have ads?

Neither JamKoo nor Numbered Musical Notation shows ads.

### Which is updated more often, JamKoo or Numbered Musical Notation?

JamKoo ships an update every 4 weeks, and Numbered Musical Notation every 6 weeks. Most recently, JamKoo was updated on November 2, 2026 and Numbered Musical Notation on October 30, 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.*