Comparison

Mnemo Major System Trainer vs majors23

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

majors23

Features
Read full description

Stop forgetting numbers. Start seeing them. majors23 teaches you the Major System — a proven mnemonic technique that converts digits into consonant sounds, which you then turn into vivid words and images. Phone numbers, PINs, dates, historical years, mathematical constants: anything becomes a picture you can't unsee. HOW IT WORKS Each digit 0–9 maps to a phonetic sound. Two digits make a word. That word has an image. Your brain remembers images far better than abstract numbers — that's the whole trick. FOUR TABS. ONE SYSTEM. Reference Browse all 100 number-image-word associations in a 5-column grid. Hide numbers, pictures, or words to self-test. Tap any cell to reveal it. Read aloud with built-in voice playback — hear the number and word spoken together at adjustable speeds. Double-tap anywhere to stop. Generate Type any sequence of digits and instantly see the matching image-word pairs. Perfect for encoding phone numbers, PINs, or constants like Pi and Euler's number. Copy the words or a learning prompt in one tap. Save any sequence with your own visual story sentence for later review. Quiz Test yourself in two directions: Number → Image or Image → Number. Choose multiple choice or type-in answers. Target any range of numbers, drill specific digit combinations with Matrix mode, or let the app automatically surface your weakest numbers in Difficult mode. Quit any time without affecting your stats. Stats Track accuracy and average response time for every number across both quiz types. Sort by any column to spot your blind spots at a glance. FEATURES 100 hand-curated mnemonic images Voice reading with number + word spoken aloud Configurable quiz: range, matrix, or difficulty-based selection Unlimited questions with automatic recycling Persistent stats saved on-device Day and night display modes No account required — everything stays on your device Whether you are preparing for a memory competition, trying to memorize your passport number, or just curious about how memory athletes think, majors23 gives you the full toolkit. Start with 00. You will never forget Zeus again.

Screenshots

Mnemo Major System Trainer4 screens
majors234 screens

Verdict

The call

The clearest difference is price: majors23 at Free against Mnemo Major System Trainer's $12.99. majors23 also leads on update cadence (every 5 days vs every 2 months). Mnemo Major System Trainer's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17). On ads and in-app purchases 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

majors23 is free to download; Mnemo Major System Trainer costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mnemo Major System Trainer ships an update every 2 months, majors23 every 5 days. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Mnemo Major System Trainer versus majors23: the parameters behind the verdict, then further details
ParameterMnemo Major System Trainermajors23
Price$12.99Free — better
Rating4.4 (18 ratings) — better—
Positive reviews88.1% of reviews—
Number of ratings18 — better—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17
Further details — not scored
Size54 MB139 MB
Age rating4+4+
DeveloperGerald ReindlJAE HO YOON

In-app purchases

None

Mnemo Major System Trainer

No in-app purchases

None

majors23

No in-app purchases

Questions

Is Mnemo Major System Trainer free?
Mnemo Major System Trainer costs $12.99, with no in-app purchases.
Is majors23 free?
majors23 is free to download, with no in-app purchases.
Do Mnemo Major System Trainer or majors23 have ads?
Neither Mnemo Major System Trainer nor majors23 shows ads.
Which is updated more often, Mnemo Major System Trainer or majors23?
Mnemo Major System Trainer ships an update every 2 months, and majors23 every 5 days. Most recently, Mnemo Major System Trainer was updated on October 23, 2026 and majors23 on October 8, 2026.

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