Comparison

memoryOS vs Audio Fastlane

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

Audio Fastlane

This app transforms commutes and workouts into study sessions for maritime professionals. It offers audiobooks covering essential qualifications, taught through real-life incidents to enhance retention for exams.

Highlights
  • Full exam prep audiobooks
  • Disaster-anchored teaching method
  • Written by working deck officers
  • Continue listening across titles
  • Chapter navigation by syllabus
  • Adjustable playback speed
  • Car mode with simple controls
  • Offline listening support
Features
Read full description

Audio Fastlane turns the reading for your next ticket or certificate into audiobooks, so the studying happens while your hands are busy: on watch, washing down, in the gym, in the car, or on the way to the airfield. There are two sides to the library. Maritime covers yacht, merchant navy, and fishing and workboat tickets. Aviation covers the FAA private pilot certificate. Choose your side when you first open the app and the library follows. Every title is written from the syllabus, the textbooks and the course notes. Where a title has been checked against published accident reports, its page says which reports and when it was last reviewed, so you can see what you are trusting. LISTEN, READ, SEE, TEST - Listen. Plays in the background with lock-screen controls. Skip fifteen seconds either way, change speed from 0.5x to 2x, and pick up exactly where you left off, to the second. - Read along. Pull up from the player and the chapter's text rides up over it, with the word being spoken highlighted. Tap any word to jump the audio there. Press and hold a term to see what it means. Turn the text up large, or let it scroll itself. - Visual recaps. On most titles, each chapter has a strip of short animated diagram cards, one idea per card, for the rules that are easier seen than heard. - Exam-style questions. Questions on each chapter, a random set from any book, a mixed exam across your route, and practice on the questions you keep getting wrong. BUILT FOR THE WAY YOU STUDY - Routes and tickets. Home shows one button for each route, in ladder order from entry level to the top ticket. Tell the app what you are working towards and your own route comes first. - Progress. A daily listening goal, a streak, the titles you have finished, and a running total of the hours you have put towards your ticket or certificate. - Downloads on tap, a chapter or a whole book, for listening with no signal. Nothing downloads on its own. - Sleep timer: 15, 30, 45 or 60 minutes, or the end of the chapter. - Car mode: one tap from the player for large controls you can use at a glance. - Bookmarks, and a share link for any chapter. - Reminders, if you want them. Notifications are off until you say yes, and you can switch them off in Settings. - Report a bug from inside the app. FIVE TITLES FREE, FOR GOOD No subscription and no account: COLREGs Explained, COLREGs Word for Word, Yachtmaster Offshore, The Casualties That Wrote the Rules of the Sea, and Private Pilot: The Accidents That Wrote the Rules of the Sky. ALL ACCESS All Access unlocks every title in the library, new ones included, with their read-along, recaps and questions. It comes in 1-month, 3-month and 12-month plans. Customers who are eligible for the introductory offer start with a 3-day free trial; the app tells you before you buy whether you are eligible. Prices are shown in the app in your local currency. YOUR ACCOUNT The free titles need no account. An account keeps your place in step across your devices, and you can delete it yourself in Settings at any time. COMING FROM THE OLD APP Your subscription comes with you: open the app and tap Restore, or sign in. Listening positions, bookmarks and downloads start again on this version. SUBSCRIPTION INFORMATION All Access is an auto-renewing subscription, sold in 1-month, 3-month and 12-month lengths. Payment is charged to your Apple Account at confirmation of purchase. It renews at the same price unless cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours of the end of that period. Manage or cancel in your Apple Account settings after purchase. Where a free trial is offered, any unused part of it is forfeited if you buy a subscription before it ends. Privacy Policy: https://audiofastlane.com/policies/privacy-policy Terms of Use (EULA): https://audiofastlane.com/policies/terms-of-service

Screenshots

memoryOS4 screens
Audio Fastlane4 screens

Verdict

The call

The clearest difference is ads: memoryOS at none against Audio Fastlane's shown. memoryOS also leads on chart position (#61 vs unranked). Audio Fastlane's advantage is review sentiment (100% vs 80%). On price, update cadence, in-app purchases and monetization model 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 and Audio Fastlane sells 4 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

memoryOS ships an update every 2 weeks, Audio Fastlane fortnightly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 8 level
memoryOS versus Audio Fastlane: the parameters behind the verdict, then further details
ParametermemoryOSAudio Fastlane
PriceFreeFree
Rating4.9 (17K ratings) — better—
Positive reviews80.3% of reviews100.0% of reviews — better
Number of ratings17K — better—
Update frequencyEvery 2 weeksFortnightly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#61 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.2 — better16.4
Further details — not scored
Size231 MB74 MB
Age rating4+4+
DeveloperEncoder Inc.Henry Peace

Customer experience

memoryOS

All ratings16,902 ratings
Positive97.2%
Neutral1.0%
Negative1.8%
Written reviews1,694 reviews
Positive80.3%
Neutral4.9%
Negative14.8%

Audio Fastlane

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Audio Fastlane

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
4 purchases

Audio Fastlane

Subscriptions4
  • All Access – 1 Month3 Days trial$24.991 Month
  • All Access – 3 Months3 Days trial$59.993 Months
  • All Access – 6 Months3 Days trial$99.996 Months
Show 1 more
  • All Access – 12 Months3 Days trial$149.991 Year

Questions

Is memoryOS free?
memoryOS is free to download, with in-app purchases available.
Is Audio Fastlane free?
Audio Fastlane is free to download, with in-app purchases available.
Do memoryOS or Audio Fastlane have ads?
Audio Fastlane shows ads; memoryOS does not.
Which is updated more often, memoryOS or Audio Fastlane?
memoryOS ships an update every 2 weeks, and Audio Fastlane fortnightly. Most recently, memoryOS was updated on October 26, 2026 and Audio Fastlane on October 25, 2026.

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