Comparison

memoryOS vs Cartwright App

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 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.

Highlights
  • Interactive memory lessons
  • 3D Virtual Mind Palaces
  • Spaced repetition system
  • Gamified learning
  • Memorize names, lists, numbers, and more
  • Advanced study techniques
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

Cartwright App

Features
Read full description

あなたは異星の知性体に出会った。 彼らは地球のことを何も知らない。 人間の体の構造も、時間の流れ方も、愛という概念も、彼らの世界には存在しないかもしれない。 そんなエイリアンに、あなたは「赤色」をどう説明するだろうか? 「お金」とは何かを、貝殻も金属も知らない存在にどう伝えるだろうか? 「死」を、永遠に生きる種族にどう理解させるだろうか? Cartwrightは、AIエイリアンとの会話を通じて「当たり前のことを、当たり前でない相手にどう伝えるか」を試す思考型iOSアプリです。 【特徴】 ■ AIエイリアンとの自由な対話 Anthropic社のClaude AIを使った本格的な会話体験。エイリアンはあなたの説明に驚き、時に皮肉を返し、独自の視点で問い返してきます。 ■ 27パターンのエイリアン像 「身体性」「社会性」「時間感覚」の3軸×3値で、自分が想像するエイリアン像を設定。あなたが選んだエイリアンの特性に応じて、会話の難易度や反応が変化します。 ■ 25のお題、150問のクイズ 「円」「ゼロ」「時間」「赤」「痛み」「音楽」「死」「冗談」「約束」「嘘」「美」「愛」など、抽象から具体まで幅広い概念を扱います。本番テストでは150問プールから20問が出題されます。 ■ 哲学的な思考の訓練 当たり前のことを言葉にする過程で、自分が普段どれだけ「前提」に頼って生きているかに気づきます。 ■ ランクシステム S・A・B・C・Dの5段階評価。スコアに応じてエイリアンからの講評を受け取れます。 ■ 履歴機能 過去のセッションを振り返り、未完了の会話は途中から再開できます。 【プラン】 Free(無料):AI会話体験 月1回、選択肢テスト全問 Pro(月額1,500円):AI会話 月10回、広告なし Premium(月額3,000円):AI会話 月30回、カスタムお題、詳細フィードバック Elite(月額15,000円):AI会話 月100回、エイリアンの姿が見えるプレビュー機能 【こんな方におすすめ】 ・哲学や思考実験が好きな人 ・自分の言語化能力を試したい人 ・AIとの本格的な対話を楽しみたい人 ・SF的な世界観が好きな人 ・営業・プレゼン・ライティングのスキルを磨きたい人 【プライバシーへの配慮】 ユーザー登録不要。アカウント情報は一切収集しません。AI会話は安全な経路で処理され、個人情報がサーバーに保存されることはありません。 「あなたは、地球を知らない誰かに、地球を語れますか?」 Terms of Use (EULA): https://hikakinhouse3.github.io/cartwright-legal/terms.html Privacy Policy: https://hikakinhouse3.github.io/cartwright-legal/privacy.html

Screenshots

memoryOS4 screens
Cartwright App4 screens

Verdict

The call

The clearest difference is ads: memoryOS at none against Cartwright App's shown. memoryOS also leads on chart position (#67 vs unranked) and iOS requirement (15.2 vs 18.5). On price, in-app purchases 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 9 in-app purchases, starting at $5.99 per month and Cartwright App sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard3 real differences · 8 level
memoryOS versus Cartwright App: the parameters behind the verdict, then further details
ParametermemoryOSCartwright App
PriceFreeFree
Rating4.9 (17K ratings) — better—
Positive reviews80.3% of reviews—
Number of ratings17K — better—
Update frequencyFortnightly—
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
Best chart rank#67 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.2 — better18.5
Further details — not scored
Size232 MB5 MB
Age rating4+12+
DeveloperEncoder Inc.makoto morita

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

Cartwright App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

memoryOS

Subscriptions9
  • Student Monthly Plan7 Days trial$5.991 Month
  • Essential Weekly Plan7 Days trial$6.997 Days
  • Essential Monthly Plan$15.991 Month
Show 6 more
  • 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
3 purchases

Cartwright App

Subscriptions3
  • Cartwright Pro$9.991 Month
  • Cartwright Premium$19.991 Month
  • Cartwright Elite$99.991 Month

Questions

Is memoryOS free?
memoryOS is free to download, with in-app purchases available.
Is Cartwright App free?
Cartwright App is free to download, with in-app purchases available.
Do memoryOS or Cartwright App have ads?
Cartwright App shows ads; memoryOS does not.

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