Comparison

Mnemo Major System Trainer vs Aubel

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mnemo Major System Trainer

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
Read full description

The Major System is an effective method for encoding numbers into images. Using this mnemonic technique, remembering a sequence of numbers is highly improved compared to simple memorization. (Synonyms: Major System, Master System, Digit Code according to Aimée Paris, Phonetic System, conversione fonetica etc.).  The Mnemo Major System Trainer allows you to create a personalised Major System for the mnemonics Major System. With the help of the integrated training programme - the trainer - the Major System can be quickly learned and further optimised. For this purpose, a traffic light system of reaction times to queried terms is used, which effectively exposes sub-optimally selected images and allows rapid optimisation in the development of one's own Major System. A summary overview of the reaction times - here called statistics - additionally supports this process. In addition to the master system, trainer and statistics, the generator was added as a further component, which enables the translation of arbitrarily long numerical sequences into the images of the major system. To further facilitate the process of creating your own major system, a ready-made major system for the number range 00 - 99 has been integrated. In addition, a list of alternative terms that satisfy the rules of the major system was added to each term. Attention: The selected images are to be understood as examples and logically cannot be the optimal memory image for everyone. (In ancient times, for example, teachers of mnemonics refrained from giving their students ready-made mnemonic systems. The students were supposed to develop their own systems. Even then, it was known that one's own associations facilitate memorisation). Features: INTUITIVELY DESIGNED LEARNING PROGRAM • Multiple training possibilities • Question mode for images or numbers • Training with major system terms instead of pictures • Free selection of the number range to be learned with optional restrictions to specific reaction time ranges, questions answered incorrectly or not yet processed terms • Training level indicator PREINSTALLED MAJOR SYSTEM • Major System Terms and selected images for the numbers 0 – 99 and 00 – 09 • Major System Terms for the numbers 000 – 999 • Freely customizable • Comprehensive collection of alternative Major System Terms • Choice of alternative images (camera, photo album, integrated web search for images) • Color codes for response times in the main view of the Major System • Cards view (comfortable learning like using file cards) • Optional extension to the three-digit major system (the trainer and the generator automatically use the chosen system: 2 or 3 digits) • Build optional major systems (in addition to the German, English and Italian Major System three custom major systems can be build) • CSV Import and Export • Import and export (incl. pictures) in Mnemo file format GENERATOR • Major System encoding for any numerical sequence • Possibility of adding notes • Saves any number of encodings • Settings (hide the notes field, hide the pictures, one or multiple terms per line) • Supports the Person – Action – Object (PAO) System (uses the optional master systems Custom 1, 2 and 3 alternately) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://glab-apps.com/privacy.html

About

Aubel

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
Read full description

Train your ear and your eye. Aubel is ear training and sight-reading for music students. Hear intervals, scales, and chords and name them. Read notes, chords, and key signatures on the staff. A progression engine starts from what you already know and opens up new material as you get accurate. LISTEN Intervals, scales, chord quality, and intonation, by ear. Two notes and a gap. A scale running up and down. Four notes stacked into a chord. Train one at a time, or mix them. READ Notes on the staff, intervals, scales, chords, and key signatures, on sight. The same progression that sharpens your ear sharpens how fast you read. PRACTICE THAT ACTUALLY HAPPENS Most people mean to do ear training and never get to it. The problem is timing, not motivation. Aubel makes the practice come to you. Set a morning alarm that plays a few notes and won't dismiss until you name them. Put distracting apps behind a quick challenge with Screen Time, so opening Instagram costs you five intervals first. COMPETE A daily chord-progression puzzle, the same one for everyone, every day. Weekly leagues that sort you against players at your level. A global board. Head-to-head battles with friends whenever you want one. FOR CLASSROOMS Teachers can run a class, assign quizzes, and see who is keeping up, with full reporting on the web. PRICING Aubel is free to start. One payment unlocks everything, and you pay what it is worth to you. No subscription, ever. WHY EAR TRAINING A trained ear shrinks the gap between what you imagine and what you play. You hear the chord changes coming. You catch your own tuning. You learn songs off a recording instead of waiting for the sheet music. Every music student knows ear training matters. Almost nobody does it, because the plan to practice later this week loses to everything else on the list. Aubel fixes the timing first. The session is thirty seconds, and the apps you already open ask for it. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mnemo Major System Trainer4 screens
Aubel4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard4 real differences · 6 level
Mnemo Major System Trainer versus Aubel: the parameters behind the verdict, then further details
ParameterMnemo Major System TrainerAubel
Price$12.99Free — better
Rating4.4 (18 ratings)5.0 (11 ratings) — better
Positive reviews88.1% of reviews100.0% of reviews — better
Number of ratings18 — better11
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size54 MB130 MB
Age rating4+12+
DeveloperGerald ReindlEuan Maley

Customer experience

Mnemo Major System Trainer

All ratings18 ratings
Positive77.8%
Neutral16.7%
Negative5.6%
Written reviews42 reviews
Positive88.1%
Neutral9.5%
Negative2.4%

Aubel

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Mnemo Major System Trainer

No in-app purchases

18 purchases

Aubel

One-time18
  • Meow$0.99
  • Rocket$0.99
  • Kalimba$0.99
Show 15 more
  • Unlock Aubel$1.99
  • Keyboard & Plucked$2.99
  • Percussion Pack$2.99
  • Strings Pack$2.99
  • Brass Pack$2.99
  • Woodwinds Pack$2.99
  • Saxes Pack$2.99
  • Unlock Aubel$4.99
  • Unlock Aubel$9.99
  • Complete Collection$9.99
  • Unlock Aubel$14.99
  • Unlock Aubel$19.99
  • Unlock Aubel$24.99
  • Unlock Aubel$49.99
  • Unlock Aubel$99.99

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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