# memoryOS vs devmio

The clearest difference is ratings volume: memoryOS at 16K against devmio's 28. memoryOS also leads on rating (4.9 vs 4.7) and chart position (#49 vs unranked). devmio's advantage is review sentiment (100% vs 80%) and update cadence (weekly vs every 3 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. memoryOS sells 23 in-app purchases, starting at $3.99 per 7 days and devmio sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

memoryOS holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: memoryOS has 16K ratings behind it against 28, so its average is the more settled of the two. Written reviews complicate that: 80% of memoryOS's written reviews are positive against 100% of devmio's, so the app with the better star average is not the one people write more warmly about.

memoryOS ships an update every 3 weeks, devmio weekly. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | memoryOS | devmio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (16K ratings)](https://appshunter.io/ios/app/memoryos-memory-games/id1553283646/reviews)** | [4.7 (28 ratings)](https://appshunter.io/ios/app/devmio/id1618454378/reviews) |
| Number of ratings | **16K** | 28 |
| Positive reviews | 80.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#49** | — |
| Size | 248 MB | 102 MB |
| Requires iOS | **15.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Encoder Inc.](https://appshunter.io/developer/1524669695) | [Software & Support Media GmbH](https://appshunter.io/developer/393839683) |

## What reviewers say

### memoryOS

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

**Currently charting:** #49 Top Grossing · Education, #113 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 | $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


### devmio

[App page](https://appshunter.io/ios/app/devmio/id1618454378)

Access online conferences and hands-on workshops from renowned software experts. Gain exclusive insights into new technologies through tutorials and engage in real-time Q&A sessions. Explore a rich archive of past sessions.

**Highlights:** Online conferences, Hands-on workshops, Expert Q&A sessions, Tutorials on new technologies, Archive of past sessions

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic access | $9.99 | per month |
| Basic Access with trial | $9.99 | per month |
| Fullstack Access | $99.99 | per year |


## Frequently asked questions

### Is memoryOS free?

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

### Is devmio free?

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

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

memoryOS is rated higher. memoryOS averages 4.9 out of 5 from 16K ratings, while devmio averages 4.7 from 28 ratings.

### Do memoryOS or devmio have ads?

Neither memoryOS nor devmio shows ads.

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

memoryOS ships an update every 3 weeks, and devmio weekly. Most recently, memoryOS was updated on October 13, 2026 and devmio on October 7, 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.*