# MonitorMix vs Number System Trainer

The clearest difference is review sentiment: Number System Trainer at 100% against MonitorMix's 16%. Number System Trainer also leads on rating (5.0 vs 3.0) and update cadence (weekly vs every 7 months). MonitorMix's advantage is monetization model (free vs free with in-app purchases) and ratings volume (87 vs 10). 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.

Number System Trainer holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: MonitorMix has 87 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 16% of MonitorMix's written reviews are positive against 100% of Number System Trainer's.

MonitorMix ships an update every 7 months, Number System Trainer weekly. The most recent releases landed on September 27, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | MonitorMix | Number System Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (87 ratings)](https://appshunter.io/ios/app/monitormix-us/id1001345675/reviews) | **[5.0 (10 ratings)](https://appshunter.io/ios/app/number-system-trainer/id6786437503/reviews)** |
| Number of ratings | **87** | 10 |
| Positive reviews | 16.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 67 MB | 10 MB |
| Requires iOS | 16 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yamaha Corporation of America](https://appshunter.io/developer/408058585) | [Brandon Oaks](https://appshunter.io/developer/6786437505) |

## What reviewers say

### MonitorMix

[App page](https://appshunter.io/ios/app/monitormix-us/id1001345675)

Control individual mix, matrix, and auxiliary buses wirelessly from your mobile device. Performers can easily adjust their assigned buses without complex settings, creating personalized group adjustments for simplified control.

**Highlights:** Wireless personal mixing, Control MIX/MATRIX/AUX buses, Individual performer control, Simplified settings, Customizable group settings, One-fader level adjustment

**In-app purchases:** none

**What reviewers like**

- 👍 Game changer for mixes
- 👍 Great for personal monitor mixes
- 👍 Works well with QL5
- 👍 Seamless operation with QL5
- 👍 Usable remote features

**What reviewers complain about**

- 🐛 Connection issues on iOS
- 🐛 App not finding mixer
- 🐛 Spinning wheel of death
- 🐛 IP address deletion bug
- 🐛 "Lock channel" feature not disableable

**Reported bugs**

- IP address won't recognize '0'
- IP address deleting zeros when entering manually
- Cannot type IP addresses manually on iPhone
- App requests access to local network but doesn't show in settings
- iPhone stuck synchronizing

**Requested features**

- Keep phone awake while using app
- Control GEQ and PEQ for monitor
- Admin control over GEQ/PEQ activation
- Lighter text color for network list


### Number System Trainer

[App page](https://appshunter.io/ios/app/number-system-trainer/id6786437503)

Learn and master the Nashville Number System for music. This app offers interactive modules to help musicians of all levels understand chord progressions, transpose songs, and improve their ear training. It's designed for quick learning and on-the-fly musical communication.

**Highlights:** Interactive learning modules, Chord reading and identification, Instant transposition, Ear training exercises, Visual chord shapes, Circle of 4ths & 5ths reference

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


## Frequently asked questions

### Is MonitorMix free?

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

### Is Number System Trainer free?

Number System Trainer is free to download, with no in-app purchases.

### Which has better reviews, MonitorMix or Number System Trainer?

Number System Trainer is rated higher. MonitorMix averages 3.0 out of 5 from 87 ratings, while Number System Trainer averages 5.0 from 10 ratings.

### Do MonitorMix or Number System Trainer have ads?

Neither MonitorMix nor Number System Trainer shows ads.

### Which is updated more often, MonitorMix or Number System Trainer?

MonitorMix ships an update every 7 months, and Number System Trainer weekly. Most recently, MonitorMix was updated on September 27, 2026 and Number System Trainer on September 14, 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.*