Comparison

memoryOS vs Nemonic

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

Head to head
About

memoryOS

Enhance your memory and focus with interactive lessons and a virtual mind palace game. Learn scientifically proven techniques to improve knowledge retention and recall a wide range of information, from names and numbers to complex data and entire books.

Highlights
  • Interactive bite-sized lessons
  • Virtual Mind Palaces game
  • Spaced repetition system
  • Scientifically proven techniques
  • Improve knowledge retention
  • Memorize diverse information
Features
Read full description

memoryOS contains interactive bite-sized lessons by a 2X World Memory Champion and an educational 3D game of Virtual Mind Palaces - all in one easy-to-use app. It utilizes scientifically proven memory techniques, spaced repetition and patented game mechanics to enhance long-term memory storage and improve knowledge retention. memoryOS is loved by 500,000+ people worldwide because it is a whole new, joyful & game-changing tool for obtaining the most effective memorization skills. Co-founded by Jonas von Essen, who went from struggling to remember to becoming a World Memory Champion, winning on Who Wants To Be a Millionaire, "Jeopardy, and setting a world record by memorizing 100,000 decimals of Pi . memoryOS app has over 18k public worldwide ratings on Apple and Google app stores combined, averaging 4.8 stars. Users also continue adding 5-star reviews daily, sharing how effective and life-changing memoryOS has been for them. Also, memoryOS remains the most crowdfunded app in Kickstarter’s history. Memorization is as important as reading and writing and should be taught as our base skill. Our mission is to enable millions of people to remember needed information easily. With memoryOS, you will learn how to memorize: - Names, Long speeches, Lists of items, Birthdays, Personal facts, Passwords, Trivia, Languages, Vocabulary and phrases, Countries and Capitals, Flags, Historical timeline, Numbers, Periodic table - Content of complete books, Dates of significant events, Complex data structures, Concepts, and figures - Art, Anatomy, Decks of cards, Advanced number systems; Long sequences of numbers, Binary Digits You will also learn: - How to keep track of years, months, weeks, and days - Advanced study techniques, Spaced Repetition system, Speed memorization Why did Google Brands Accelerator recognize memoryOS as being 'Light Years Ahead' in the memory space? • memoryOS delivers results: During our pre-launch phase, thousands of users completed our demo and, on average, had a 70% increase in recall and a 60% increase in recall speed just after the first ~40min session. • Providing your mind with structured storage space: We have spent tens of thousands of hours creating and optimizing our Virtual Mind Palaces, so you don’t have to spend months constructing your own the hard way. These virtual palaces serve as blueprints for your mind's storage space, allowing you to easily encode, store and recall like a memory champion. • A proven innovative approach that works: During our research and development stage, thousands of people of all age groups and even those with difficult medical conditions found memoryOS as an effective and useful tool. Actual results exceeded our team’s expectations. • Gamified edtech at its best: memoryOS has proven to work on people with no prior gaming experience - anyone can use it. Utilizing the power of the Unity game engine, memoryOS is widely accessible on all mobile and tablet devices and is soon coming to VR. -- Joining memoryOS is free. This provides extensive value on the free plan, and you are not obligated to pay to start using it. You can subscribe to a Student Premium plan for as low as $3.49/month when billed annually or $4.99/month when billed monthly (it can be 10-20% higher in some countries due to local taxes). You can subscribe through the 'Shop' section of the memoryOS app and find the above-mentioned or go to your App Store app's profile and choose a desired plan there. Recurring payments will automatically renew unless you cancel your account at least 24 hours before the end of the current subscription period. You can manage your subscription, cancel anytime, or turn off auto-renewal by accessing your iTunes account. Join the memoryOS community of over 500,000+ early adopters who share this memorable journey! -- Terms: memoryOS.com/terms Privacy policy: memoryOS.com/privacy-policy Learn more at: memoryOS.com Contact us: support@memoryOS.com

About

Nemonic

This app creates personalized audio courses on any topic, complete with narration and quizzes. It uses spaced repetition to help you retain information long-term, making learning efficient during your daily activities.

Highlights
  • AI-generated audio courses
  • Customizable topics
  • Narrated content
  • Interactive quizzes
  • Spaced repetition learning
  • Offline listening
Features
Read full description

Tell Nemonic what you want to learn — a goal, a topic, anything you're curious about — and it becomes audio courses you actually finish and remember. You read, listen, and explore all day. A week later, how much can you actually explain? Nemonic makes it stick. 3,900+ audio lessons and counting. HOW IT WORKS 1. Tell us what to learn — type a goal, drop a PDF, or connect your AI so it can suggest exactly what you need. 2. Listen — Nemonic turns it into 5–60 minute audio lessons you can play hands-free. 3. Remember — spaced-repetition practice brings every idea back right before you'd forget. WHY NEMONIC • Any goal, any interest. Tell Nemonic what you want to master and get a real course in minutes. • Audio-first. Turn your commute, walk, or workout into real progress. • Made to stick. Spaced repetition and active recall are built in, not bolted on. • Practice with no penalty. Wrong answers cost nothing — every question builds a multiplier and earns XP, so reviewing feels like progress, not a test. • Your AI knows what you need. Connect ChatGPT, Claude, or Gemini and Nemonic turns everything it knows about you — the culmination of all your conversations, not just one — into a personalized learning plan. • Deep, not wide. Same-language courses on what you actually do: engineering, history, AI, business, and more. BUILT FOR Commuters, students, and knowledge workers tired of forgetting what they read — engineers, founders, med students, and lifelong learners. If Anki or Quizlet never quite stuck, start here. WHY IT WORKS The best teacher would have read every book ever written — and would quiz you at the exact moment you're about to forget. That's what we built. Answer a question, right or wrong, and Nemonic brings it back at the perfect time. That's spaced repetition, and it's why it sticks. Learn anything, just by listening. Download Nemonic and turn everything you're curious about into something you'll actually remember. Terms of Use: Apple Standard End User License Agreement applies: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

memoryOS4 screens
Nemonic4 screens

Verdict

The call

The clearest difference is ratings volume: memoryOS at 17K against Nemonic's 15. memoryOS also leads on chart position (#63 vs unranked). Nemonic's advantage is review sentiment (100% vs 80%) and update cadence (weekly vs every 2 weeks). On price, rating, 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

Both are free to download. memoryOS sells 23 in-app purchases, starting at $3.99 per 7 days and Nemonic sells 4 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for memoryOS against 5.0 for Nemonic. That said, the two scores are not equally well evidenced: memoryOS has 17K ratings behind it against 15, so its average is the more settled of the two. Written reviews are what separate them: 80% of memoryOS's written reviews are positive against 100% of Nemonic's.

UpkeepUpdate frequency

memoryOS ships an update every 2 weeks, Nemonic weekly. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 7 level
memoryOS versus Nemonic: the parameters behind the verdict, then further details
ParametermemoryOSNemonic
PriceFreeFree
Rating4.9 (17K ratings)5.0 (15 ratings) — better
Positive reviews80.3% of reviews100.0% of reviews — better
Number of ratings17K — better15
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#63 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.2 — better16.4
Further details — not scored
Size231 MB109 MB
Age rating4+12+
DeveloperEncoder Inc.KnowMore Labs, LLC

Customer experience

memoryOS

All ratings16,902 ratings
Positive97.2%
Neutral1.0%
Negative1.8%
Written reviews1,709 reviews
Positive80.3%
Neutral4.9%
Negative14.8%

Nemonic

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

memoryOS

Reported bugs

5 issues
  • Login issues and account management problems
  • Frequent crashes and app instability
  • Navigation and UI elements not working as expected
  • Syncing issues between devices and lost progress
  • Connectivity problems when using cellular data

Requested features

5 requests
  • More free content and lessons
  • Ability to create custom memory palaces
  • Better progress tracking and analytics
  • Integration with other learning/productivity apps
  • Offline mode for lessons and memory palaces

Nemonic

Not enough reviews yet to summarise bugs or requests.

In-app purchases

23 purchases

memoryOS

Subscriptions20
  • Student Weekly Plan$3.997 Days
  • Student Monthly Plan7 Days trial$5.991 Month
  • Expert Weekly Plan7 Days trial$6.997 Days
Show 17 more
  • Essential Weekly Plan7 Days trial$6.997 Days
  • Essential Monthly Plan7 Days trial$14.991 Month
  • Essential Monthly Plan2 variants$14.991 Month
  • Essential Monthly Plan$16.991 Month
  • Student 3 Months Plan$19.993 Months
  • Expert Monthly Plan$24.991 Month
  • Expert Monthly Plan$29.991 Month
  • Expert 3 Months Plan7 Days trial$49.993 Months
  • Expert 3 Months Plan$69.993 Months
  • Expert 6 Months Plan7 Days trial$89.996 Months
  • Essential Annual Plan1 Month trial$89.991 Year
  • Essential Annual Plan7 Days trial3 variants$89.991 Year
  • Essential Annual Plan14 Days trial$89.991 Year
  • Expert Annual Plan7 Days trial$148.991 Year
  • Expert Annual Plan1 Month trial$149.991 Year
  • Expert Annual Plan7 Days trial$174.991 Year
  • Expert Annual Plan1 Month trial$174.991 Year
One-time3
  • 10 Hearts$0.99
  • 10 Loci Coins$2.99
  • 50 Loci Coins$14.99
4 purchases

Nemonic

Subscriptions1
  • Nemonic All7 Days trial$12.991 Month
One-time3
  • Summon$3.00
  • Summon$4.99
  • Summon$6.99

Questions

Is memoryOS free?
memoryOS is free to download, with in-app purchases available.
Is Nemonic free?
Nemonic is free to download, with in-app purchases available.
Which has better reviews, memoryOS or Nemonic?
Nemonic is rated higher. memoryOS averages 4.9 out of 5 from 17K ratings, while Nemonic averages 5.0 from 15 ratings.
Do memoryOS or Nemonic have ads?
Neither memoryOS nor Nemonic shows ads.
Which is updated more often, memoryOS or Nemonic?
memoryOS ships an update every 2 weeks, and Nemonic weekly. Most recently, memoryOS was updated on November 1, 2026 and Nemonic on October 28, 2026.

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