memoryOS vs Mind Palace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Interactive bite-sized lessons
- Virtual Mind Palaces game
- Spaced repetition system
- Scientifically proven techniques
- Improve knowledge retention
- Memorize diverse information
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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
Mind Palace
This app uses the Method of Loci and AI to create immersive memory palaces for learning. It transforms information into visual, spatial experiences for better recall, offering AI-generated environments and mnemonic lists. Features include spaced repetition, spatial quizzes, and progress tracking.
- AI Image Generation for Memory Palaces
- AI List Generation for Mnemonic Aids
- Spaced Repetition System (SM-2)
- Spatial Quizzes and Reverse Recall
- Gamification with Streaks and Badges
- Activity Heatmaps for Progress Tracking
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Stop grinding through boring flashcards or rigid tools like Anki and Quizlet. Mind Palace combines the ancient Method of Loci with cutting-edge Generative AI to help you build an unforgettable, spatial memory. Whether you are prepping for the MCAT, studying for a nursing exam, tackling the LSAT, learning a new language, or just interested in the Method of Loci, Mind Palace transforms your screen into a visual world where you simply cannot forget. HACK YOUR MEMORY The brain isn't wired to memorize raw text, but it perfectly recalls spatial environments and bizarre imagery. Mind Palace allows you to map complex information onto visual "Memory Palaces" using the loci technique. Walk through your palace digitally, anchor facts to specific objects, and lock data into your long-term memory. SURREAL PALACES WITH AI Say goodbye to manual data entry and "blank canvas syndrome." • AI Image Generation: Instantly generate stunning, surreal palace backgrounds - from Gothic libraries to underwater greenhouses - or snap photos of your own room. • AI List Generation: Type any study subject (e.g., "Human Anatomy" or "French Verbs") and watch the AI instantly build a complete, ready-to-study mnemonic list. • "Bizarre Mode": Harness the Von Restorff effect. Toggle this mode to have the AI turn dry facts into weird, funny, and surreal visual imagery that your brain is hardwired to remember. • Auto-Pinning: Let the AI automatically map and pin your items perfectly onto your visual environments. BULLETPROOF RECALL (SRS) • Smart Spaced Repetition: Powered by our refined SM-2 algorithm. The app tracks your exact "Forgetting Curve" and tests you the moment before you forget an item. • Spatial Quizzes: Test your recall natively within your visual palaces using multiple quiz modes and interactive tap-to-reveal mechanics. • Reverse Recall: Challenge your brain from multiple angles to solidify deep neural pathways. • Study Forecasts: See your upcoming workload days in advance to perfectly plan your study prep. ADVANCED TRAINING MODES • Memory Quests - AI stories that walk your list through palace locations step by step. • Recall Decks - SRS flashcards with review and multiple-choice quiz modes. • Speed Deck - Build a 52-card PAO system and learn to memorize any shuffled deck fast. TRACK YOUR MASTERY • Activity Heatmaps: Watch your memory capacity grow with contribution graphs. • Gamification: Maintain daily streaks, use Streak Freezes to protect your progress on busy days, and unlock achievement badges for flawless recall scores. PERFECT FOR: • Students: Crush massive STEM, law, and medical board exams. • Professionals: Deliver keynotes and presentations flawlessly without notes. • Language Learners: Rapidly absorb massive vocabulary lists. • Lifelong Learners: Anyone interested in hacking their psychology to unlock a cognitive superpower and remember literally anything. CHOOSE YOUR LEVEL Mind Palace offers a privacy-first, 100% local architecture with flexible plans to fit your study habits: • Free (The Essentials): Create custom Memory Palaces, access the full Spaced Repetition algorithm and more. • Pro: Boost your workflow with more Architect features, including 50 Image generations/month, Item Suggestions, Auto pin feature, cloud storage, and much more. Stop forgetting. Start building. Download Mind Palace today. Terms of Use: https://mind-palace-be728.web.app/terms-of-use.html
Screenshots
Verdict
The clearest difference is update cadence: Mind Palace at every 3 days against memoryOS's every 3 weeks. Mind Palace also leads on review sentiment (100% vs 80%). memoryOS's advantage is ratings volume (16K vs 1) and chart position (#47 vs unranked). 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
Both are free to download. memoryOS sells 20 in-app purchases, starting at $3.99 per 7 days and Mind Palace sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for memoryOS against 5.0 for Mind Palace. That said, the two scores are not equally well evidenced: memoryOS has 16K ratings behind it against 1, 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 Mind Palace's.
memoryOS ships an update every 3 weeks, Mind Palace every 3 days. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.
| Parameter | memoryOS | Mind Palace |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (16K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 80.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 16K — better | 1 |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | #47 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.2 — better | 15.6 |
| Further details — not scored | ||
| Size | 248 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Encoder Inc. | STEPHAN HENNING |
Customer experience
memoryOS
Mind Palace
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
Mind Palace
Not enough reviews yet to summarise bugs or requests.
In-app purchases
memoryOS
- Student Weekly Plan$3.997 Days
- Student Monthly Plan7 Days trial$4.991 Month
- Expert Weekly Plan7 Days trial$6.997 Days
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- Essential Weekly Plan7 Days trial$6.997 Days
- Essential Monthly Plan3 variants$14.991 Month
- Essential Monthly Plan7 Days trial$14.991 Month
- Student 3 Months Plan$19.993 Months
- Expert Monthly Plan2 variants$24.991 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 Plan7 Days trial$149.991 Year
- Expert Annual Plan1 Month trial2 variants$149.991 Year
- 10 Hearts$0.99
- 10 Loci Coins$2.99
- 50 Loci Coins$14.99
Mind Palace
- Mind Palace Starter$2.991 Month
- Mind Palace Pro$9.991 Month









