# Bayes Manager vs memoryOS

The clearest difference is in-app purchases: Bayes Manager at none against memoryOS's 10. Bayes Manager also leads on iOS requirement (9.0 vs 15.2). memoryOS's advantage is ratings volume (17K vs 5) and chart position (#65 vs unranked). On price, rating, ads and device support there is nothing between them.

Both are free to download. memoryOS sells 9 in-app purchases, starting at $5.99 per month. Bayes Manager asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Bayes Manager against 4.9 for memoryOS. That said, the two scores are not equally well evidenced: memoryOS has 17K ratings behind it against 5, so its average is the more settled of the two.

## The numbers

| Metric | Bayes Manager | memoryOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/bayes-manager/id1226336767/reviews)** | [4.9 (17K ratings)](https://appshunter.io/ios/app/memoryos-memory-games/id1553283646/reviews) |
| Number of ratings | 5 | **17K** |
| Positive reviews | — | 80.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#65** |
| Size | 14 MB | 232 MB |
| Requires iOS | **9.0** | 15.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Center for Evidence-Based Management](https://appshunter.io/developer/977259958) | [Encoder Inc.](https://appshunter.io/developer/1524669695) |

## What reviewers say

### Bayes Manager

[App page](https://appshunter.io/ios/app/bayes-manager/id1226336767)

This app assists managers and policymakers in calculating the likelihood of a claim or hypothesis being true. It uses Bayes' Rule and available evidence to provide probability estimates.

**Highlights:** Estimate claim probability, Apply Bayes' Rule, Utilize available evidence, Support for managers and policymakers

**Features:** macOS Compatibility

**In-app purchases:** none


### memoryOS

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

**Currently charting:** #65 Top Grossing · Education, #75 Top Free · Education (US App Store)

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:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Student Monthly Plan | $5.99 | per month |
| Essential Weekly Plan | $6.99 | per 7 days |
| Essential Monthly Plan | $15.99 | per month |
| Expert Monthly Plan | $27.99 | per month |
| 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 |

**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


## Frequently asked questions

### Is Bayes Manager free?

Bayes Manager is free to download, with no in-app purchases.

### Is memoryOS free?

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

### Which has better reviews, Bayes Manager or memoryOS?

Bayes Manager is rated higher. Bayes Manager averages 5.0 out of 5 from 5 ratings, while memoryOS averages 4.9 from 17K ratings.

### Do Bayes Manager or memoryOS have ads?

Neither Bayes Manager nor memoryOS shows ads.

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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.*