memoryOS vs Digmitto
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Interactive memory lessons
- 3D Virtual Mind Palaces
- Spaced repetition system
- Gamified learning
- Memorize names, lists, numbers, and more
- Advanced study techniques
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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
Digmitto
Learn a powerful mnemonic technique to transform numbers into memorable words. This educational app offers interactive tutorials, practice exercises, and achievements to make memory improvement fun and effective. It supports multiple languages and works offline for a private learning experience.
- Interactive Major System tutorials
- Number-to-word conversion exercises
- Unlockable achievements and rewards
- Customizable language dictionaries
- Offline operation and privacy
- User-friendly interface with animations
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Digmitto is an innovative, open‐source educational app designed to teach you the Major System—a powerful mnemonic technique that transforms numbers into memorable words. Whether you’re a child, a student, or simply looking to boost your memory skills, Digmitto makes learning numbers fun, interactive, and highly effective. Key Features: Interactive Tutorials: Learn the Major System step by step. Our tutorial guides you through converting words into numbers and vice versa, making abstract concepts concrete and engaging. Practice Exercises: Engage in a series of exercises where you convert words into numbers. With every correct first-attempt answer, earn points and collect fun fruit icons. Achievements & Rewards: Track your progress as you unlock achievements such as First Steps, Memory Master, Speed Demon, Perfect Session, and Coconut Collector. All achievements are saved between sessions, so you always see your progress. Customizable Experience: Choose from multiple language dictionaries (Polish, English, Spanish) and adjust settings like cheat sheet display and color themes to tailor the app to your learning style. User-Friendly Interface: Enjoy a clean, intuitive design with dynamic animations and smooth gradient transitions. The interactive number wheels are grouped into triplets for easier reading of tens, thousands, and beyond. Offline Operation & Privacy: Digmitto works entirely offline—no personal data is collected. Your learning experience is fast, private, and secure. How It Works: Digmitto uses the Major System where each digit is associated with specific consonant sounds. For example, the digit 1 is linked with "T" or "D," while 9 corresponds to "P" or "B." By converting words into these numbers, you can easily remember long sequences. In each exercise: A random word is displayed. You adjust the number wheels to match the numerical code derived from the word. Instant feedback tells you if your answer is correct, and you earn points and rewards for first-attempt accuracy. Why Choose Digmitto? Effective Learning: Our engaging exercises help you quickly master number-to-letter associations. Fun & Interactive: With points, achievements, and vibrant animations, learning becomes a game. Proven Mnemonic Techniques: Based on the Major System, a tried-and-tested method for improving memory. Accessible & Multilingual: Fully localized for multiple languages, making it accessible to a global audience. Join thousands of users transforming their memory skills with Digmitto. Whether you’re preparing for exams, enhancing your cognitive skills, or simply curious about mnemonic techniques, Digmitto is your gateway to a smarter way of learning numbers. Download Digmitto today and start turning numbers into memories!
Screenshots
Verdict
The clearest difference is rating: memoryOS at 4.9 against Digmitto's 3.5. memoryOS also leads on review sentiment (80% vs 50%) and ratings volume (17K vs 2). Digmitto's advantage is in-app purchases (none vs 10). On price, ads, 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
Both are free to download. memoryOS sells 9 in-app purchases, starting at $5.99 per month. Digmitto asks for nothing beyond the download.
memoryOS holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: memoryOS has 17K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 80% of memoryOS's written reviews are positive against 50% of Digmitto's.
| Parameter | memoryOS | Digmitto |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (17K ratings) — better | 3.5 (2 ratings) |
| Positive reviews | 80.2% of reviews — better | 50.0% of reviews |
| Number of ratings | 17K — better | 2 |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #62 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.2 — better | 15.6 |
| Further details — not scored | ||
| Size | 232 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Encoder Inc. | Grzegorz Kulesza |
Customer experience
memoryOS
Digmitto
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
Digmitto
Not enough reviews yet to summarise bugs or requests.
In-app purchases
memoryOS
- Student Monthly Plan7 Days trial$5.991 Month
- Essential Weekly Plan7 Days trial$6.997 Days
- Essential Monthly Plan$15.991 Month
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- 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
Digmitto
No in-app purchases









