Comparison

listerCompass vs memoryOS

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

Head to head
About

listerCompass

This app is a stereographic compass designed for structural geologists. It allows users to measure and record foliations and lineations in the field, log descriptions, and export data in various formats, including KML for Google Earth.

Highlights
  • Measure foliations and lineations
  • Record traverse information on a map
  • Log on-the-fly data descriptions
  • Export data in KML and other formats
  • Supports UTM and latitude-longitude
  • Multiple data format options
Features
Read full description

A stereographic compass for use by a structural geologist in the field. The compass readily allows measurement of foliations and lineations, records the information, and allows placemark pins to be dropped on a map to record traverse information. It is designed by a professional structural geologist, and takes into account practical issues: i) measuring upside down under overhangs; ii) measures lineations separately, or foliations, or all together (tap tap on the display to change); iii) allows on the fly data descriptions to be logged; iv) allows export of data, including a KML file that can be dragged onto GoogleEarth to record placemark locations. Records data in a variety of different formats: i) UTM; ii) latitude-longitude. Double tap on the display screen to change. Toggle between the compass screen, the data display, and the map. Autosaves your data and allows export via email, or using iTunes. Use different formats: i) strike, dip and rake if you focus on planes, and lines on planes; ii) yaw, pitch and roll if you focus on the lines themselves; or iii) standard data formats such as dip->dipDirection and plunge->trend to emulate BREITHAUPT COMPASS, or strikeQuadrantDip (e.g., 200NW30) to emulate BRUNTON COMPASS. Annotate place mark pins, or record info in the data log. The listerCompass also provides options for statistical analysis.

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

Screenshots

listerCompass4 screens
memoryOS4 screens

Verdict

The call

The clearest difference is price: memoryOS at Free against listerCompass's $5.99. memoryOS also leads on rating (4.9 vs 1.0) and review sentiment (80% vs 50%). listerCompass's advantage is in-app purchases (none vs 28). On 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

memoryOS is free to download; listerCompass costs $5.99 up front. memoryOS sells 23 in-app purchases, starting at $3.99 per 7 days. listerCompass asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

memoryOS holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: memoryOS has 17K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of listerCompass's written reviews are positive against 80% of memoryOS's.

UpkeepUpdate frequency

listerCompass ships an update every 5 months, memoryOS every 2 weeks. The most recent releases landed on July 4, 2026 and October 19, 2026 respectively.

Scorecard9 real differences · 2 level
listerCompass versus memoryOS: the parameters behind the verdict, then further details
ParameterlisterCompassmemoryOS
Price$5.99Free — better
Rating1.0 (1 ratings)4.9 (17K ratings) — better
Positive reviews50.0% of reviews80.4% of reviews — better
Number of ratings117K — better
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank—#67 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS26.015.2 — better
Further details — not scored
Size7 MB248 MB
Age rating4+4+
DeveloperGordon ListerEncoder Inc.

Customer experience

listerCompass

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

memoryOS

All ratings16,799 ratings
Positive97.2%
Neutral1.0%
Negative1.8%
Written reviews1,691 reviews
Positive80.4%
Neutral4.8%
Negative14.8%

Bugs and requests

listerCompass

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

listerCompass

No 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

Questions

Is listerCompass free?
listerCompass costs $5.99, with no in-app purchases.
Is memoryOS free?
memoryOS is free to download, with in-app purchases available.
Which has better reviews, listerCompass or memoryOS?
memoryOS is rated higher. listerCompass averages 1.0 out of 5 from 1 ratings, while memoryOS averages 4.9 from 17K ratings.
Do listerCompass or memoryOS have ads?
Neither listerCompass nor memoryOS shows ads.
Which is updated more often, listerCompass or memoryOS?
listerCompass ships an update every 5 months, and memoryOS every 2 weeks. Most recently, listerCompass was updated on July 4, 2026 and memoryOS on October 19, 2026.

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