# JamKoo vs YDS Controller

The clearest difference is review sentiment: JamKoo at 76% against YDS Controller's 35%. JamKoo also leads on update cadence (every 4 weeks vs every 4 months) and iOS requirement (12.0 vs 15.0). YDS Controller's advantage is in-app purchases (none vs 9) and rating (4.7 vs 4.4). On price, ads and device support there is nothing between them.

Both are free to download. JamKoo sells 9 in-app purchases, starting at $0.99 per month. YDS Controller asks for nothing beyond the download.

YDS Controller holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 36 and 164 respectively. Written reviews complicate that: 76% of JamKoo's written reviews are positive against 35% of YDS Controller's, so the app with the better star average is not the one people write more warmly about.

JamKoo ships an update every 4 weeks, YDS Controller every 4 months. Both last shipped on September 25, 2026.

## The numbers

| Metric | JamKoo | YDS Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (36 ratings)](https://appshunter.io/ios/app/jamkoo-lets-perform-music/id1457240484/reviews) | **[4.7 (164 ratings)](https://appshunter.io/ios/app/yds-controller/id1502495217/reviews)** |
| Number of ratings | 36 | **164** |
| Positive reviews | **76.5% of reviews** | 35.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 4 months |
| Monetization | Freemium | **Free** |
| Size | 288 MB | 86 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Robkoo Information & Technologies Co., Ltd.](https://appshunter.io/developer/987892941) | [Yamaha Corporation](https://appshunter.io/developer/353469356) |

## 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 |


### YDS Controller

[App page](https://appshunter.io/ios/app/yds-controller/id1502495217)

This app allows for detailed sound creation and editing for specific musical instruments. Users can customize instrument tones, adjust effects, and modify fingering configurations. It also provides instrument settings like breath resistance and tuning, offering a more intuitive visual interface than the instrument itself.

**Highlights:** Edit saxophone, synthesizer, and shakuhachi tones, Adjust effects and detailed sound parameters, Customize fingering configurations, Adjust breath resistance and response, Change instrument tuning, Display registered fingering lists

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is JamKoo free?

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

### Is YDS Controller free?

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

### Which has better reviews, JamKoo or YDS Controller?

YDS Controller is rated higher. JamKoo averages 4.4 out of 5 from 36 ratings, while YDS Controller averages 4.7 from 164 ratings.

### Do JamKoo or YDS Controller have ads?

Neither JamKoo nor YDS Controller shows ads.

### Which is updated more often, JamKoo or YDS Controller?

JamKoo ships an update every 4 weeks, and YDS Controller every 4 months. Most recently, JamKoo was updated on September 25, 2026 and YDS Controller on September 25, 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.*