# memoryOS vs BrainGain

The clearest difference is review sentiment: memoryOS at 80% against BrainGain's 62%. memoryOS also leads on rating (4.9 vs 4.7). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. memoryOS sells 23 in-app purchases, starting at $3.99 per 7 days and BrainGain sells 13 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

memoryOS holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 17K and 22K respectively. Written reviews point the same way: 80% of memoryOS's written reviews are positive against 62% of BrainGain's.

memoryOS ships an update every 2 weeks, BrainGain fortnightly. Both last shipped on October 28, 2026.

## The numbers

| Metric | memoryOS | BrainGain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (17K ratings)](https://appshunter.io/ios/app/memoryos-memory-games/id1553283646/reviews)** | [4.7 (22K ratings)](https://appshunter.io/ios/app/braingain-iq-brain-training/id6475691697/reviews) |
| Number of ratings | 17K | **22K** |
| Positive reviews | **80.3% of reviews** | 61.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#57** | #164 |
| Size | 231 MB | 219 MB |
| Requires iOS | **15.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Encoder Inc.](https://appshunter.io/developer/1524669695) | [AIBY](https://appshunter.io/developer/1458102137) |

## What reviewers say

### memoryOS

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

**Currently charting:** #57 Top Grossing · Education, #84 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


### BrainGain

[App page](https://appshunter.io/ios/app/braingain-iq-brain-training/id6475691697)

**Currently charting:** #164 Top Grossing · Education (US App Store)

Engage in daily brain training with adaptive games and mental tests designed to improve memory, focus, problem-solving, math, and language skills. Choose short bursts or longer sessions to fit your schedule and track your progress.

**Highlights:** Adaptive cognitive games, Daily brain workouts, Build memory and focus, Improve math and language skills, Problem-solving exercises, Mental tests and assessments, Progress tracking

**Features:** Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $6.99 | per 7 days |
| Premium | $6.99 | per 7 days |
| Premium | $7.99 | per 7 days |
| Premium | $7.99 | per 7 days |
| Premium | $9.99 | per 7 days |
| Premium | $19.99 | per year |
| Premium | $29.99 | per year |
| Premium | $34.99 | per year |
| Premium | $39.99 | per year |
| Premium | $44.99 | per year |
| Premium | $59.99 | per year |
| Premium | $59.99 | per year |
| Premium | $69.99 | one-time |

**What reviewers like**

- 🧠 Helpful brain exercises
- 🧠 Keeps mind active
- 🧠 Improves memory and focus
- 🧠 Enjoyable and engaging

**What reviewers complain about**

- 💰 Expensive subscription
- 🔒 Requires payment to access full features
- 🔍 Limited free trial
- 🔍 Unclear subscription details
- 🐛 Technical issues and bugs

**Reported bugs**

- Games freezing or not progressing
- Touchscreen responsiveness issues
- Incorrect or missing answers in games
- Unauthorized charges for subscription

**Requested features**

- Allow users to view test results without subscription
- Provide more challenging puzzles and games
- Improve app performance and stability
- Offer a one-time purchase option instead of subscription


## Frequently asked questions

### Is memoryOS free?

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

### Is BrainGain free?

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

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

memoryOS is rated higher. memoryOS averages 4.9 out of 5 from 17K ratings, while BrainGain averages 4.7 from 22K ratings.

### Do memoryOS or BrainGain have ads?

Neither memoryOS nor BrainGain shows ads.

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

memoryOS ships an update every 2 weeks, and BrainGain fortnightly. Most recently, memoryOS was updated on October 28, 2026 and BrainGain on October 28, 2026.

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

memoryOS currently peaks at #57 in the App Store charts, and BrainGain at #164. 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.*