# memoryOS vs Easy Sail Trim

The clearest difference is ratings volume: memoryOS at 17K against Easy Sail Trim's 2. memoryOS also leads on chart position (#72 vs unranked). Easy Sail Trim's advantage is update cadence (every 5 days vs every 2 weeks) and iOS requirement (12.0 vs 15.2). On price, rating, 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 Easy Sail Trim sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for memoryOS against 5.0 for Easy Sail Trim. That said, the two scores are not equally well evidenced: memoryOS has 17K ratings behind it against 2, so its average is the more settled of the two.

memoryOS ships an update every 2 weeks, Easy Sail Trim every 5 days. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | memoryOS | Easy Sail Trim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (17K ratings)](https://appshunter.io/ios/app/memoryos-memory-games/id1553283646/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/easy-sail-trim/id6467118449/reviews)** |
| Number of ratings | **17K** | 2 |
| Positive reviews | 80.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#72** | — |
| Size | 231 MB | 123 MB |
| Requires iOS | 15.2 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Encoder Inc.](https://appshunter.io/developer/1524669695) | [AT-PT Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1627490559) |

## What reviewers say

### memoryOS

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

**Currently charting:** #72 Top Free · Education, #73 Top Grossing · 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 | $16.99 | per month |
| Student 3 Months Plan | $19.99 | per 3 months |
| Expert Monthly Plan | $24.99 | per month |
| Expert Monthly Plan | $29.99 | 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 | $174.99 | per year |
| Expert Annual Plan | $174.99 | 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


### Easy Sail Trim

[App page](https://appshunter.io/ios/app/easy-sail-trim/id6467118449)

Enhance your sailing performance with a tool that helps you master sail trim for increased speed and balance. Quickly identify and resolve on-water issues and intuitively understand your boat's components.

**Highlights:** 3D sail trim optimization, Instant issue identification and resolution, Intuitive boat component illustrations, Speed and balance enhancement, On-water problem solving

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is memoryOS free?

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

### Is Easy Sail Trim free?

Easy Sail Trim is free to download, with in-app purchases available.

### Which has better reviews, memoryOS or Easy Sail Trim?

Easy Sail Trim is rated higher. memoryOS averages 4.9 out of 5 from 17K ratings, while Easy Sail Trim averages 5.0 from 2 ratings.

### Do memoryOS or Easy Sail Trim have ads?

Neither memoryOS nor Easy Sail Trim shows ads.

### Which is updated more often, memoryOS or Easy Sail Trim?

memoryOS ships an update every 2 weeks, and Easy Sail Trim every 5 days. Most recently, memoryOS was updated on October 25, 2026 and Easy Sail Trim on October 21, 2026.

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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.*