Comparison

majors23 vs MemoryStash

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

Head to head
About

majors23

Features
Read full description

Stop forgetting numbers. Start seeing them. majors23 teaches you the Major System โ€” 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 0โ€“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 โ€” 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 โ€” 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 โ†’ Image or Image โ†’ 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 โ€” 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.

About

MemoryStash

Features
Read full description

Stop forgetting. Start remembering. Whether you are a student cramming for exams, a professional memorizing presentations, or someone looking to keep their mind sharp, this app is your ultimate personal memory gym. Train your brain using the exact techniques used by global memory athletes and cognitive science. Our structured, step-by-step path breaks down complex mnemonic systems into bite-sized, interactive daily practices. Every association you build makes your brain stronger! Your 5-Step Journey to Super-Memory: 1. The Major System: Convert digits into phonetic sounds. Say goodbye to raw numbers and hello to memorable words! 2. Peg Words: Attach vivid, concrete words to every 2-digit pair (00-99) for lightning-fast numerical recall. 3. PAO (Person-Action-Object): Group numbers into highly visual, dynamic action scenes. 4. Memory Palace (Method of Loci): Map your knowledge onto familiar locations and navigate through your mind to retrieve it. 5. Acronyms: Compress complex lists, formulas, and academic facts into memorable, fun phrases. Powerful Features Built for Mastery: Interactive Quizzes: Test your recall with custom speed quizzes, adaptive difficulty modes, and real-time timers. Mobile Number Storyteller: Input any long number (like a phone number) and instantly generate peg-word breakdowns and visual stories to lock it into your long-term memory. Visual Personalization: Add your own custom images to your Peg and PAO flashcards to make memory associations uniquely yours. Ready-to-Use Reference Guides: Quick-access sheets for the Major System phonetic rules, peg words, and built-in classic acronyms (like planet order, music scales, and geography). Performance Tracking: Track your accuracy, reaction times, and daily streaks to watch your recall speed soar. Get ready to build a mind like a steel trap. Download now and build your first Memory Palace today!

Screenshots

majors234 screens
MemoryStash4 screens

Verdict

The call

The clearest difference is device support: MemoryStash at 3 against majors23's 1. MemoryStash also leads on iOS requirement (15.1 vs 17). On price, ads and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences ยท 4 level
majors23 versus MemoryStash: the parameters behind the verdict, then further details
Parametermajors23MemoryStash
PriceFreeFree
Update frequencyEvery 5 daysโ€”
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS1715.1 โ€” better
Further details โ€” not scored
Size139 MB33 MB
Age rating4+4+
DeveloperJAE HO YOONGK SOFT

In-app purchases

None

majors23

No in-app purchases

None

MemoryStash

No in-app purchases

Questions

Is majors23 free?
majors23 is free to download, with no in-app purchases.
Is MemoryStash free?
MemoryStash is free to download, with no in-app purchases.
Do majors23 or MemoryStash have ads?
Neither majors23 nor MemoryStash shows ads.

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