memoryOS vs CharmXP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Interactive bite-sized lessons
- Virtual Mind Palaces game
- Spaced repetition system
- Scientifically proven techniques
- Improve knowledge retention
- Memorize diverse information
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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
CharmXP
Practice real-life social and professional interactions with an AI coach. Get instant feedback on your performance, learn communication skills, and track your progress to build confidence.
- AI role-play scenarios
- Interactive communication lessons
- Instant performance reports
- XP and level-up system
- Progress tracking
- Voice and video role-play
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UNLOCK UNSTOPPABLE CONFIDENCE CharmXP turns nerve-racking real-life moments into low-stakes practice rounds—powered by cutting-edge AI. Master professional networking, nail job interviews, and build social confidence before you ever set foot in the room. PLEASE NOTE: CharmXP requires an active subscription to access its advanced features, including real-time AI coaching, the full scenario library, and advanced performance analytics. WHY CHARMXP? - AI Practice Scenarios (Subscription Required) – Choose from various social and professional situations (interviews, networking events, or social connections) and practice with a lifelike AI that adapts to your tone and conversation flow. - Interactive Lessons (Subscription Required) – Access bite-sized modules on charisma, storytelling, active listening, and body language to learn and then instantly apply. - Instant Performance Reports (Subscription Required) – After every session, receive a detailed heat-map of your performance to see where you excelled in clarity, empathy, and engagement. - XP & Level-Ups – Earn XP as you perform and advance through harder scenarios as your skills skyrocket. - Progress Tracker – Watch your confidence score climb week by week and celebrate wins that matter in the real world. PERFECT FOR * Professionals looking to sharpen their networking and presentation skills. * Job seekers who need realistic interview preparation. * Entrepreneurs and sales pros refining their pitch and communication style. * Anyone looking to overcome social struggles through private, safe practice. HOW IT WORKS 1. Choose a Scenario – Select from professional or social missions. 2. Talk It Out – Engage in voice based practice with the AI coach. 3. Get Your Report – Pinpoint your strengths and areas for growth with data-driven feedback. 4. Master the Skills – Complete lessons to level up your social intelligence. 5. Earn XP & Repeat – Advance through missions as your real-world confidence reaches new heights. WHY USERS LOVE IT - “Felt like a real interview. Got the job two weeks later.” - “Social confidence through the roof.” - “Every sales objection drilled before the call—closed the deal.” SUBSCRIPTION INFORMATION CharmXP may offer a free trial for new users depending on eligibility. After the trial period, an active monthly or annual subscription is required to access the full catalog of lessons, AI coaching scenarios, and advanced analytics. - In-App Purchases: Premium Monthly, Premium Annual, Premium Weekly - Privacy Policy: https://fullbricks.com/charmxp/privacy - Terms and Conditions: https://charmxp.com/policies/terms-and-conditions.pdf Ready to own every conversation? Download CharmXP now and start levelling up today.
Screenshots
Verdict
The clearest difference is review sentiment: memoryOS at 80% against CharmXP's 46%. memoryOS also leads on rating (4.9 vs 4.4) and chart position (#63 vs unranked). On price, update cadence, ads and in-app purchases 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 23 in-app purchases, starting at $3.99 per 7 days and CharmXP sells 14 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.
memoryOS holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: memoryOS has 17K ratings behind it against 2.6K, 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 46% of CharmXP's.
memoryOS ships an update every 2 weeks, CharmXP every 3 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | memoryOS | CharmXP |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (17K ratings) — better | 4.4 (2.6K ratings) |
| Positive reviews | 80.3% of reviews — better | 45.7% of reviews |
| Number of ratings | 17K — better | 2.6K |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #63 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.2 — better | 16.4 |
| Further details — not scored | ||
| Size | 231 MB | 133 MB |
| Age rating | 4+ | 17+ |
| Developer | Encoder Inc. | FullBricks LLC |
Customer experience
memoryOS
CharmXP
User reviews
memoryOS
From 17K App Store ratingsWhat we love
- 🚀 Effective memory techniques
- 👍 Interactive and engaging
- 💡 Innovative use of memory palaces
- 🤩 Impressive results in a short time
- 🎉 Fun and enjoyable to use
Room to improve
- 💰 Expensive subscription model
- 🐛 Buggy and crashes frequently
- 🤔 Confusing navigation and UI
- 🔒 Lack of transparency around pricing
- 🙄 Aggressive upselling and marketing tactics
CharmXP
From 2.6K App Store ratingsWhat we love
- 👍 Helps build confidence
- 🚀 Effective communication practice
- 💡 Unique AI-driven role-play
- 👍 Engaging and fun to use
- 👍 Personalized feedback and progress
Room to improve
- 🐛 Some users report issues with payment and trial period
- 🤖 AI responses can feel robotic at times
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
CharmXP
Reported bugs
1 issue- Occasional app crashes or freezes
Requested features
2 requests- More diverse conversation topics
- Expanded role-play scenarios beyond dating and interviews
In-app purchases
memoryOS
- Student Weekly Plan$3.997 Days
- Student Monthly Plan7 Days trial$5.991 Month
- Expert Weekly Plan7 Days trial$6.997 Days
Show 17 moreShow fewer
- 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
- 10 Hearts$0.99
- 10 Loci Coins$2.99
- 50 Loci Coins$14.99
CharmXP
- Charm XP Pro$6.997 Days
- Charm XP Pro3 Days trial$6.997 Days
- Charm XP Pro$8.997 Days
Show 8 moreShow fewer
- Charm XP Pro$12.997 Days
- Charm XP Pro$19.991 Month
- Charm XP Pro, 1 Month$24.991 Month
- premium$39.493 Months
- Charm XP Pro$39.991 Year
- Charm XP Pro$49.991 Year
- Charm XP Pro7 Days trial$79.991 Year
- Charm XP Pro3 Days trial$87.901 Year
- premium$3.79
- premium$9.79
- premium$19.49








