# memoryOS vs Spiro

The clearest difference is review sentiment: memoryOS at 80% against Spiro's 33%. memoryOS also leads on rating (4.9 vs 3.3) and ratings volume (17K vs 3). Spiro's advantage is in-app purchases (none vs 10). On price, ads, device support and iOS requirement there is nothing between them.

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

memoryOS holds the better App Store score, 4.9 against 3.3. That said, the two scores are not equally well evidenced: memoryOS has 17K ratings behind it against 3, 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 33% of Spiro's.

## The numbers

| Metric | memoryOS | Spiro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (17K ratings)](https://appshunter.io/ios/app/memoryos-memory-games/id1553283646/reviews)** | [3.3 (3 ratings)](https://appshunter.io/ios/app/spiro/id1602980337/reviews) |
| Number of ratings | **17K** | 3 |
| Positive reviews | **80.2% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#56** | — |
| Size | 232 MB | 1 MB |
| Requires iOS | 15.2 | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Encoder Inc.](https://appshunter.io/developer/1524669695) | [An Trinh](https://appshunter.io/developer/441499584) |

## What reviewers say

### memoryOS

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

**Currently charting:** #56 Top Grossing · Education, #97 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


### Spiro

[App page](https://appshunter.io/ios/app/spiro/id1602980337)

Create mesmerizing animated spirographs with this interactive generator. Experiment with various parameters to produce unique visual effects. Built with Swift Playgrounds 4.

**Highlights:** Interactive spirograph generation, Animated visual effects, Parameter customization, Hypotrochoid manipulation, Built with Swift Playgrounds 4

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is memoryOS free?

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

### Is Spiro free?

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

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

memoryOS is rated higher. memoryOS averages 4.9 out of 5 from 17K ratings, while Spiro averages 3.3 from 3 ratings.

### Do memoryOS or Spiro have ads?

Neither memoryOS nor Spiro shows ads.

---

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