# 데카르트 vs 브레인오케이

The clearest difference is in-app purchases: 브레인오케이 at none against 데카르트's 10. 브레인오케이 also leads on review sentiment (100% vs 80%). 데카르트's advantage is update cadence (every 5 days vs fortnightly). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. 데카르트 sells 10 in-app purchases, starting at $6.99 per month. 브레인오케이 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for 데카르트 against 5.0 for 브레인오케이. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews are what separate them: 80% of 데카르트's written reviews are positive against 100% of 브레인오케이's.

데카르트 ships an update every 5 days, 브레인오케이 fortnightly. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 데카르트 | 브레인오케이 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/id1555197321/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/5/id1664309524/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | — | Free |
| Size | 334 MB | 388 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jaebin Lee](https://appshunter.io/developer/1548625525) | [Beluga](https://appshunter.io/developer/1664309526) |

## What reviewers say

### 데카르트

[App page](https://appshunter.io/ios/app/id1555197321)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 데카르트 1개월 멤버십 | $6.99 | per month |
| 월간 정기 구독권 | $6.99 | per month |
| 데카르트 3개월 구독 | $17.99 | per 3 months |
| 1년 정기 구독권 | $59.99 | per year |
| 연간 정기 구독권 | $59.99 | per year |
| 데카르트 3개월 이용권 | $14.99 | one-time |
| 3개월 이용권 선물하기 | $14.99 | one-time |
| 1년 이용권 선물하기 | $49.99 | one-time |
| 12개월 이용권 | $54.99 | one-time |
| 12개월 이용권 선물 특별할인 | $59.99 | one-time |

**What reviewers like**

- 👍 Easy to use for elders
- 🧠 Good for brain exercise
- 😊 Fun and engaging games
- 💡 Diverse range of activities (games, yoga, meditation)
- 👨‍👩‍👧‍👦 Suitable for all ages

**What reviewers complain about**

- 😟 Score system causes anxiety
- 💰 Subscription can be expensive
- 🔄 Infrequent game updates
- 🐛 Sudoku game has errors
- 🚫 No in-app unsubscribe option

**Reported bugs**

- App not supported on older tablet versions
- In-app unsubscribe function missing
- Difficulty in finding unsubscribe option
- Sudoku game has errors
- Screen flickering issue during gameplay

**Requested features**

- Support for older tablet versions (Galaxy Tab S10 Lite)
- Remove the score system to reduce user anxiety
- Add a free trial period (e.g., 3-day, 7-day)
- Provide more detailed evaluation reports after a period of use
- Allow users to control progression after speech exercises (e.g., pronunciation check)


### 브레인오케이

[App page](https://appshunter.io/ios/app/5/id1664309524)

This app offers a quick and accurate cognitive function assessment to detect early signs of dementia or mild cognitive impairment. Developed with medical professionals, it allows for convenient home-based testing and provides personalized reports and brain-training games.

**Highlights:** 5-minute cognitive function tests, Early detection of dementia risk, Personalized cognitive health reports, Brain-stimulating games for training, Home-based smartphone testing, Medical validation from experts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 데카르트 free?

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

### Is 브레인오케이 free?

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

### Which has better reviews, 데카르트 or 브레인오케이?

데카르트 and 브레인오케이 are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do 데카르트 or 브레인오케이 have ads?

Neither 데카르트 nor 브레인오케이 shows ads.

### Which is updated more often, 데카르트 or 브레인오케이?

데카르트 ships an update every 5 days, and 브레인오케이 fortnightly. Most recently, 데카르트 was updated on October 25, 2026 and 브레인오케이 on October 27, 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.*