Comparison

Mnemonica Major Memory System vs majors23

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

Head to head
About

Mnemonica Major Memory System

This app helps you memorize numbers by associating them with images using the Major Memory System. It offers multiple game modes and allows you to upload custom images and study personal numbers. Supports over 20 languages.

Highlights
  • Image association for numbers
  • Major Memory System training
  • 3 game modes
  • Upload custom images
  • Study personal numbers
  • Multi-language support
Features
Read full description

Train using your images and the Major Memory System in such a way that the next time you see a number or pair of numbers, immediately your brain associates them. You can upload from 1 to 999 images, you have 3 game modes. With the 2025 update now you can also add your own numbers that you want to study, like your phone number, your credit card and any other number you want to train with! When you download the App you are able to change the language on the settings and you have: English, Italian and Arabic and more than 20 languages!!! For anything let me know by sending me an email, I'll do my best to solve or help you! Have a nice day and thanks for supporting me

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

Mnemonica Major Memory System4 screens
majors234 screens

Verdict

The call

The clearest difference is price: majors23 at Free against Mnemonica Major Memory System's $3.99. majors23 also leads on update cadence (every 5 days vs every 21 months). Mnemonica Major Memory System's advantage is device support (4 vs 1) and iOS requirement (12.0 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; Mnemonica Major Memory System costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mnemonica Major Memory System ships an update every 21 months, majors23 every 5 days. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

Scorecard4 real differences · 5 level
Mnemonica Major Memory System versus majors23: the parameters behind the verdict, then further details
ParameterMnemonica Major Memory Systemmajors23
Price$3.99Free — better
Rating4.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 21 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS12.0 — better17
Further details — not scored
Size35 MB139 MB
Age rating4+4+
DeveloperAbdelwadoud HakimiJAE HO YOON

In-app purchases

None

Mnemonica Major Memory System

No in-app purchases

None

majors23

No in-app purchases

Questions

Is Mnemonica Major Memory System free?
Mnemonica Major Memory System costs $3.99, with no in-app purchases.
Is majors23 free?
majors23 is free to download, with no in-app purchases.
Do Mnemonica Major Memory System or majors23 have ads?
Neither Mnemonica Major Memory System nor majors23 shows ads.
Which is updated more often, Mnemonica Major Memory System or majors23?
Mnemonica Major Memory System ships an update every 21 months, and majors23 every 5 days. Most recently, Mnemonica Major Memory System was updated on November 3, 2026 and majors23 on November 9, 2026.

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