# memoryOS vs Paladin

The clearest difference is review sentiment: memoryOS at 80% against Paladin's 20%. memoryOS also leads on rating (4.9 vs 4.6). Paladin's advantage is update cadence (every 6 days vs every 2 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. memoryOS sells 23 in-app purchases, starting at $3.99 per 7 days and Paladin sells 15 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

memoryOS holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 17K and 24K respectively. Written reviews point the same way: 80% of memoryOS's written reviews are positive against 20% of Paladin's.

memoryOS ships an update every 2 weeks, Paladin every 6 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | memoryOS | Paladin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (17K ratings)](https://appshunter.io/ios/app/memoryos-memory-games/id1553283646/reviews)** | [4.6 (24K ratings)](https://appshunter.io/ios/app/paladin-learn-history/id6511242367/reviews) |
| Number of ratings | 17K | **24K** |
| Positive reviews | **80.3% of reviews** | 19.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#55** | #86 |
| Size | 231 MB | 165 MB |
| Requires iOS | **15.2** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Encoder Inc.](https://appshunter.io/developer/1524669695) | [Brainstash, Inc](https://appshunter.io/developer/1445023294) |

## What reviewers say

### memoryOS

[App page](https://appshunter.io/ios/app/memoryos-memory-games/id1553283646)

**Currently charting:** #55 Top Grossing · Education, #85 Top Free · Education (US App Store)

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:** Vision Pro support

**In-app purchases (23)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Student Weekly Plan | $3.99 | per 7 days |
| Student Monthly Plan | $5.99 | per month |
| Expert Weekly Plan | $6.99 | per 7 days |
| Essential Weekly Plan | $6.99 | per 7 days |
| Essential Monthly Plan | $14.99 | per month |
| Essential Monthly Plan | $14.99 | per month |
| Essential Monthly Plan | $15.99 | per month |
| Student 3 Months Plan | $19.99 | per 3 months |
| Expert Monthly Plan | $24.99 | per month |
| Expert Monthly Plan | $27.99 | per month |
| Expert 3 Months Plan | $49.99 | per 3 months |
| Expert 3 Months Plan | $69.99 | per 3 months |
| Expert 6 Months Plan | $89.99 | per 6 months |
| Essential Annual Plan | $89.99 | per year |
| Essential Annual Plan | $89.99 | per year |
| Essential Annual Plan | $89.99 | per year |
| Expert Annual Plan | $148.99 | per year |
| Expert Annual Plan | $149.99 | per year |
| Expert Annual Plan | $159.99 | per year |
| Expert Annual Plan | $159.99 | per year |
| 10 Hearts | $0.99 | one-time |
| 10 Loci Coins | $2.99 | one-time |
| 50 Loci Coins | $14.99 | one-time |

**What reviewers like**

- 🚀 Effective memory techniques
- 👍 Interactive and engaging
- 💡 Innovative use of memory palaces
- 🤩 Impressive results in a short time
- 🎉 Fun and enjoyable to use

**What reviewers complain about**

- 💰 Expensive subscription model
- 🐛 Buggy and crashes frequently
- 🤔 Confusing navigation and UI
- 🔒 Lack of transparency around pricing
- 🙄 Aggressive upselling and marketing tactics

**Reported bugs**

- 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**

- 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


### Paladin

[App page](https://appshunter.io/ios/app/paladin-learn-history/id6511242367)

**Currently charting:** #86 Top Free · Education (US App Store)

Explore history through short, interactive lessons and engaging game elements. Learn about historical figures with animations, quizzes, and collectible characters. Make history fun and memorable, even with limited time.

**Highlights:** Short, curated historical lessons, Interactive and animated content, Quizzes to test knowledge, Collectible historical character cards, Gamified learning with leveling up

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly Subscription | $12.99 | per month |
| Pro 3 Months Subscription | $19.99 | per 3 months |
| Pro 3 Months Subscription | $24.99 | per 3 months |
| Pro 3 Months Subscription | $29.99 | per 3 months |
| Pro Yearly Subscription | $29.99 | per year |
| Pro Yearly Subscription | $39.99 | per year |
| Pro Yearly Subscription | $49.99 | per year |
| Pro Yearly Subscription | $59.99 | per year |
| Pro Yearly Subscription | $59.99 | per year |
| Pro Yearly Subscription | $69.99 | per year |
| Pro Yearly Subscription | $79.99 | per year |
| Pro Yearly Subscription | $79.99 | per year |
| Pro Yearly Subscription | $89.99 | per year |
| Pro Yearly Subscription | $89.99 | per year |
| Pro Yearly Subscription | $99.99 | per year |

**What reviewers like**

- 👍 Entertaining education
- 👍 Fun and creative way of teaching history
- 👍 Nice approach to learning history
- 👍 Fantastic start, great potential

**What reviewers complain about**

- 🚫 Lies, not very accurate
- 🚫 Flawed execution, typos and grammatical errors
- 🚫 Misrepresentations of history and outright falsehoods
- 🚫 Biased and oversimplified narratives
- 🚫 Irrelevant quiz questions

**Reported bugs**

- Spelling errors
- Incorrect answers marked as wrong
- Progression issues with retaining new chapter progress

**Requested features**

- More in-depth details and stronger vocabulary
- Ability to continue reading at your own pace
- More historical periods, conflicts, and events
- Improved quiz questions directly related to the content


## Frequently asked questions

### Is memoryOS free?

memoryOS is free to download, with in-app purchases available.

### Is Paladin free?

Paladin is free to download, with in-app purchases available.

### Which has better reviews, memoryOS or Paladin?

memoryOS is rated higher. memoryOS averages 4.9 out of 5 from 17K ratings, while Paladin averages 4.6 from 24K ratings.

### Do memoryOS or Paladin have ads?

Neither memoryOS nor Paladin shows ads.

### Which is updated more often, memoryOS or Paladin?

memoryOS ships an update every 2 weeks, and Paladin every 6 days. Most recently, memoryOS was updated on November 3, 2026 and Paladin on November 3, 2026.

### Which is more popular, memoryOS or Paladin?

memoryOS currently peaks at #55 in the App Store charts, and Paladin at #86. Chart position reflects recent download velocity rather than total install base.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*