Comparison

memoryOS vs Scanmarker Keyboard

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

Scanmarker Keyboard

Features
Read full description

ScanMarker Keyboard - Compatible with ScanMarker Air & Reader Models Unlock the full potential of your ScanMarker Air and ScanMarker Reader with the ScanMarker Keyboard app, designed to seamlessly integrate with these advanced scanning devices for a powerful, efficient, and user-friendly experience. Core Functionality: Wireless Text Scanning: Easily scan and instantly transfer text from documents, books, or any printed material directly to your iPhone or iPad. The ScanMarker Air and ScanMarker Reader work wirelessly via Bluetooth to provide real-time text transfer and reading. OCR (Optical Character Recognition): The app uses OCR technology to accurately capture and convert printed text into editable content, eliminating the need for manual typing. Real-time Reading: For users needing accessibility support, the ScanMarker Keyboard app reads out the text immediately after scanning. The app supports multiple languages, making it ideal for multilingual users. Easy Text Editing & Saving: Once scanned, the text is ready for editing, sharing, or saving to your device's notes, word processor, or any compatible app. Integration with ScanMarker Air & Reader Models: ScanMarker Air: The app connects to the ScanMarker Air model via Bluetooth, allowing for real-time scanning and text transfer. Perfect for users on-the-go who need quick, wireless scanning. ScanMarker Reader: For a more robust reading experience, the app pairs with the ScanMarker Reader to provide both reading and scanning capabilities. Great for those needing to quickly transfer scanned text for later use or integration into digital documents. Use Cases for Target Users: Students: Scan and save important notes from textbooks, articles, or lecture materials. Easily organize and access scanned text for study sessions. Dyslexic Users: With the text-to-speech feature, dyslexic users can scan and listen to the text aloud, helping with reading comprehension and reducing reading fatigue. Professionals & Researchers: Quickly capture and store text from research papers, documents, or printed materials for further analysis or referencing. Perfect For: ScanMarker Air & Reader Users: Ideal for those who already own a ScanMarker Air or ScanMarker Reader and want to maximize their functionality on iOS devices. Students, Teachers, Researchers, and Professionals: Anyone who needs to capture and edit text from printed materials quickly and efficiently.

Screenshots

memoryOS4 screens
Scanmarker Keyboard4 screens

Verdict

The call

The clearest difference is in-app purchases: Scanmarker Keyboard at none against memoryOS's 28. memoryOS's advantage is chart position (#62 vs unranked). On price, update cadence, ads and device support 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. Scanmarker Keyboard asks for nothing beyond the download.

UpkeepUpdate frequency

memoryOS ships an update every 3 weeks, Scanmarker Keyboard fortnightly. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 9 level
memoryOS versus Scanmarker Keyboard: the parameters behind the verdict, then further details
ParametermemoryOSScanmarker Keyboard
PriceFreeFree
Rating4.9 (17K ratings) — better—
Positive reviews80.5% of reviews—
Number of ratings17K — better—
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#62 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.2 — better16
Further details — not scored
Size248 MB8 MB
Age rating4+4+
DeveloperEncoder Inc.Topscan ltd.

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

Scanmarker Keyboard

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
None

Scanmarker Keyboard

No in-app purchases

Questions

Is memoryOS free?
memoryOS is free to download, with in-app purchases available.
Is Scanmarker Keyboard free?
Scanmarker Keyboard is free to download, with no in-app purchases.
Do memoryOS or Scanmarker Keyboard have ads?
Neither memoryOS nor Scanmarker Keyboard shows ads.
Which is updated more often, memoryOS or Scanmarker Keyboard?
memoryOS ships an update every 3 weeks, and Scanmarker Keyboard fortnightly. Most recently, memoryOS was updated on October 16, 2026 and Scanmarker Keyboard on October 7, 2026.

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