# Mnemo Major System Trainer vs Aubel

The clearest difference is price: Aubel at Free against Mnemo Major System Trainer's $12.99. Aubel also leads on rating (5.0 vs 4.4) and review sentiment (100% vs 88%). Mnemo Major System Trainer's advantage is in-app purchases (none vs 18). On ratings volume, update cadence, ads and monetization model there is nothing between them.

Aubel is free to download; Mnemo Major System Trainer costs $12.99 up front. Aubel sells 18 one-off in-app purchases. Mnemo Major System Trainer asks for nothing beyond the download.

Aubel holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 18 and 11 respectively. Written reviews point the same way: 88% of Mnemo Major System Trainer's written reviews are positive against 100% of Aubel's.

Mnemo Major System Trainer ships an update every 2 months, Aubel monthly. Both last shipped on October 23, 2026.

## The numbers

| Metric | Mnemo Major System Trainer | Aubel |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | [4.4 (18 ratings)](https://appshunter.io/ios/app/mnemo-major-system-trainer/id649905769/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/aubel/id6769228321/reviews)** |
| Number of ratings | **18** | 11 |
| Positive reviews | 88.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 54 MB | 130 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Gerald Reindl](https://appshunter.io/developer/649905772) | [Euan Maley](https://appshunter.io/developer/1896641730) |

## What reviewers say

### Mnemo Major System Trainer

[App page](https://appshunter.io/ios/app/mnemo-major-system-trainer/id649905769)

Learn and master the Major System, a powerful mnemonic technique for remembering numbers. This app offers an integrated training program with visual aids and statistics to help you create and optimize your personalized number-to-image encoding system.

**Highlights:** Personalized Major System creation, Integrated training program, Reaction time analysis, Number sequence to image generator, Pre-installed Major System (0-99), Customizable terms and images, CSV Import/Export

**Features:** Vision Pro support

**In-app purchases:** none


### Aubel

[App page](https://appshunter.io/ios/app/aubel/id6769228321)

This app helps music students develop their ear by identifying intervals, scales, and chords. It integrates with your phone's alarm and Screen Time features to ensure consistent practice, making ear training a daily habit.

**Highlights:** Interval, scale, and chord identification, Adaptive progression engine, Morning alarm practice integration, Screen Time app lockout for focused practice, Streak counter and accuracy tracking, Multiple game modes

**Features:** Family Sharing

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Meow | $0.99 | one-time |
| Rocket | $0.99 | one-time |
| Kalimba | $0.99 | one-time |
| Unlock Aubel | $1.99 | one-time |
| Keyboard & Plucked | $2.99 | one-time |
| Percussion Pack | $2.99 | one-time |
| Strings Pack | $2.99 | one-time |
| Brass Pack | $2.99 | one-time |
| Woodwinds Pack | $2.99 | one-time |
| Saxes Pack | $2.99 | one-time |
| Unlock Aubel | $4.99 | one-time |
| Unlock Aubel | $9.99 | one-time |
| Complete Collection | $9.99 | one-time |
| Unlock Aubel | $14.99 | one-time |
| Unlock Aubel | $19.99 | one-time |
| Unlock Aubel | $24.99 | one-time |
| Unlock Aubel | $49.99 | one-time |
| Unlock Aubel | $99.99 | one-time |


## Frequently asked questions

### Is Mnemo Major System Trainer free?

Mnemo Major System Trainer costs $12.99, with no in-app purchases.

### Is Aubel free?

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

### Which has better reviews, Mnemo Major System Trainer or Aubel?

Aubel is rated higher. Mnemo Major System Trainer averages 4.4 out of 5 from 18 ratings, while Aubel averages 5.0 from 11 ratings.

### Do Mnemo Major System Trainer or Aubel have ads?

Neither Mnemo Major System Trainer nor Aubel shows ads.

### Which is updated more often, Mnemo Major System Trainer or Aubel?

Mnemo Major System Trainer ships an update every 2 months, and Aubel monthly. Most recently, Mnemo Major System Trainer was updated on October 23, 2026 and Aubel on October 23, 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.*