Comparison

Block Logic vs memoryOS

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

Head to head
About

Block Logic

This app offers daily brain training exercises to enhance memory and concentration. It features 20 progressive difficulty levels to challenge your cognitive skills and improve mental agility through short, relaxing gameplay sessions.

Highlights
  • Memory and concentration improvement
  • Daily brain training sessions
  • 20 progressive difficulty levels
  • Track progress and beat records
  • Simple rules, challenging patterns
Features
Read full description

Block Logic: Brain Training IQ is a daily brain training game designed to improve your memory and concentration. Memorize patterns, focus your attention, and challenge your brain through 20 progressive difficulty levels. Each level pushes your memory a bit further, helping you build a stronger and faster mind over time. Just a few minutes a day is enough to train your brain. Playing daily helps improve memory skills, mental focus, and cognitive agility — all through a simple and relaxing gameplay experience. Why play Block Logic every day? • Improve memory and concentration • Train your brain with short daily sessions • 20 difficulty levels that adapt to your progress • Simple rules, challenging patterns • Track your progress and beat your own records Consistency is the key. The more you play, the better your memory becomes. Train your brain. Improve every day.

About

memoryOS

Enhance your memory with interactive lessons and a 3D virtual mind palace game. This app uses scientifically proven techniques like spaced repetition to boost long-term memory storage and knowledge retention. It's designed to make memorization skills joyful and effective for everyone.

Highlights
  • Interactive memory lessons
  • 3D Virtual Mind Palaces
  • Spaced repetition system
  • Gamified learning
  • Memorize names, lists, numbers, and more
  • Advanced study techniques
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

Screenshots

Block Logic4 screens
memoryOS4 screens

Verdict

The call

The clearest difference is in-app purchases: Block Logic at none against memoryOS's 10. memoryOS's advantage is ads (none vs shown) and rating (4.9 vs 4.4). On price, review sentiment, device support and iOS requirement 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 9 in-app purchases, starting at $5.99 per month. Block Logic asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

memoryOS holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: memoryOS has 17K ratings behind it against 57, so its average is the more settled of the two. Written reviews complicate that: 86% of Block Logic's written reviews are positive against 80% of memoryOS's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Block Logic ships an update every 19 months, memoryOS fortnightly. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

Scorecard7 real differences · 4 level
Block Logic versus memoryOS: the parameters behind the verdict, then further details
ParameterBlock LogicmemoryOS
PriceFreeFree
Rating4.4 (57 ratings)4.9 (17K ratings) — better
Positive reviews85.7% of reviews — better80.2% of reviews
Number of ratings5717K — better
Update frequencyEvery 19 monthsFortnightly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
Best chart rank—#59 — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.1 — better15.2
Further details — not scored
Size26 MB232 MB
Age rating4+4+
DeveloperJavier CampanaEncoder Inc.

Customer experience

Block Logic

All ratings55 ratings
Positive90.9%
Neutral5.5%
Negative3.6%
Written reviews28 reviews
Positive85.7%
Neutral10.7%
Negative3.6%

memoryOS

All ratings17,203 ratings
Positive97.2%
Neutral1.0%
Negative1.8%
Written reviews1,723 reviews
Positive80.2%
Neutral5.0%
Negative14.9%

Bugs and requests

Block Logic

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Block Logic

No in-app purchases

9 purchases

memoryOS

Subscriptions9
  • Student Monthly Plan7 Days trial$5.991 Month
  • Essential Weekly Plan7 Days trial$6.997 Days
  • Essential Monthly Plan$15.991 Month
Show 6 more
  • Expert Monthly Plan$27.991 Month
  • Essential Annual Plan7 Days trial2 variants$89.991 Year
  • Expert Annual Plan7 Days trial$148.991 Year
  • Expert Annual Plan1 Month trial$149.991 Year
  • Expert Annual Plan7 Days trial$159.991 Year
  • Expert Annual Plan1 Month trial$159.991 Year

Questions

Is Block Logic free?
Block Logic is free to download, with no in-app purchases.
Is memoryOS free?
memoryOS is free to download, with in-app purchases available.
Which has better reviews, Block Logic or memoryOS?
memoryOS is rated higher. Block Logic averages 4.4 out of 5 from 57 ratings, while memoryOS averages 4.9 from 17K ratings.
Do Block Logic or memoryOS have ads?
Block Logic shows ads; memoryOS does not.
Which is updated more often, Block Logic or memoryOS?
Block Logic ships an update every 19 months, and memoryOS fortnightly. Most recently, Block Logic was updated on November 6, 2026 and memoryOS on November 9, 2026.

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