Comparison

memoryOS vs Saveful

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

Saveful

This app helps you manage your kitchen inventory, plan meals based on available ingredients, and track your nutrition and savings. It offers intelligent meal suggestions, expiry reminders, and smart shopping lists to reduce food waste and save money.

Highlights
  • Kitchen inventory tracking
  • Intelligent meal suggestions
  • Expiry reminders
  • Nutrition and calorie insights
  • Personalized meal planning
  • Smart shopping lists
  • Savings tracking
Features
Read full description

INTRO Saveful is your personal food platform - helping you cook with what you have, plan smarter, and track your savings in one simple app. Save Money. Save Food. Save Time. WHAT YOU CAN DO WITH SAVEFUL Turn ingredients into flexible, delicious meals in seconds Track what’s in your fridge, freezer and pantry Build smart shopping lists based on what you actually need See calories and nutrition at a glance Plan meals around your lifestyle and dietary needs Track your savings automatically SMART KITCHEN MANAGEMENT Add what’s in your kitchen and let Saveful do the rest. Get meal ideas based on what you already have Receive reminders before food is forgotten See what to use first Cook more from what’s already in your home NUTRITION MADE SIMPLE Eat better - without overthinking it. View calories and macro breakdowns per meal Track your nutrition over time Scan meals or ingredients instantly Set goals that work for your lifestyle SMART SHOPPING Shop with intention - not guesswork. Auto-build shopping lists from your meals Avoid buying what you already have Reduce impulse purchases Save money every week BUILD BETTER HABITS Saveful helps you build habits that stick. Track your progress over time See your savings grow Stay motivated with simple, achievable steps WHY SAVEFUL? Because food is one of your biggest weekly expenses - and it deserves to work harder for you. Saveful helps you make the most of what you already have, turning everyday decisions into real savings. Stop wondering what’s for dinner. Start using what you already have. Saveful Premium (Hero & Legend) Upgrade to unlock advanced features: • AI-powered meal planning • Nutrition insights and tracking • Leftover transformations • Barcode scanning and smart kitchen tools • Unlimited AI features (Legend plan) Subscription Information • Subscriptions are billed monthly or yearly depending on your selected plan • Payment will be charged to your Apple ID account at confirmation of purchase • Subscription automatically renews unless canceled at least 24 hours before the end of the current period • Your account will be charged for renewal within 24 hours prior to the end of the current period • You can manage or cancel your subscription anytime in your App Store account settings Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.saveful.com/privacy-policy Download Saveful today.

Screenshots

memoryOS4 screens
Saveful4 screens

Verdict

The call

The clearest difference is review sentiment: memoryOS at 80% against Saveful's 25%. memoryOS also leads on chart position (#51 vs unranked) and device support (3 vs 1). Saveful's advantage is monetization model (ad-supported vs free with in-app purchases) and update cadence (every 9 days vs every 3 weeks). On price, ads, in-app purchases 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 20 in-app purchases, starting at $3.99 per 7 days and Saveful sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

memoryOS ships an update every 3 weeks, Saveful every 9 days. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

Scorecard5 real differences · 6 level
memoryOS versus Saveful: the parameters behind the verdict, then further details
ParametermemoryOSSaveful
PriceFreeFree
Rating4.9 (16K ratings) — better—
Positive reviews80.4% of reviews — better25.0% of reviews
Number of ratings16K — better—
Update frequencyEvery 3 weeksEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesAd-supported — better
Best chart rank#51 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.2 — better16.4
Further details — not scored
Size248 MB117 MB
Age rating4+4+
DeveloperEncoder Inc.Saveful

Customer experience

memoryOS

All ratings16,060 ratings
Positive97.2%
Neutral1.0%
Negative1.8%
Written reviews1,641 reviews
Positive80.4%
Neutral4.9%
Negative14.7%

Saveful

Written reviews8 reviews
Positive25.0%
Neutral12.5%
Negative62.5%

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

Saveful

Not enough reviews yet to summarise bugs or requests.

In-app purchases

20 purchases

memoryOS

Subscriptions17
  • Student Weekly Plan$3.997 Days
  • Student Monthly Plan7 Days trial$4.991 Month
  • Expert Weekly Plan7 Days trial$6.997 Days
Show 14 more
  • 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
One-time3
  • 10 Hearts$0.99
  • 10 Loci Coins$2.99
  • 50 Loci Coins$14.99
4 purchases

Saveful

Subscriptions4
  • SAVEFUL HERO7 Days trial$4.991 Month
  • SAVEFUL LEGEND7 Days trial$9.991 Month
  • SAVEFUL HERO7 Days trial$49.901 Year
Show 1 more
  • SAVEFUL LEGEND7 Days trial$99.901 Year

Questions

Is memoryOS free?
memoryOS is free to download, with in-app purchases available.
Is Saveful free?
Saveful is free to download, with in-app purchases available.
Do memoryOS or Saveful have ads?
Neither memoryOS nor Saveful shows ads.
Which is updated more often, memoryOS or Saveful?
memoryOS ships an update every 3 weeks, and Saveful every 9 days. Most recently, memoryOS was updated on September 24, 2026 and Saveful on September 23, 2026.

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