# 데카르트 vs Memory Detective

The clearest difference is ads: 데카르트 at none against Memory Detective's shown. 데카르트 also leads on update cadence (every 5 days vs every 4 weeks) and device support (3 vs 1). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. 데카르트 sells 10 in-app purchases, starting at $6.99 per month and Memory Detective sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for 데카르트 against 5.0 for Memory Detective. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

데카르트 ships an update every 5 days, Memory Detective every 4 weeks. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 데카르트 | Memory Detective |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/id1555197321/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/memory-detective/id6476572051/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 4 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 334 MB | 56 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Jaebin Lee](https://appshunter.io/developer/1548625525) | [BAMBOL Inc.](https://appshunter.io/developer/1727184509) |

## 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)


### Memory Detective

[App page](https://appshunter.io/ios/app/memory-detective/id6476572051)

This app uses AI to analyze your voice and assess potential dementia risk. It's designed for early detection by having you read a sentence, providing a cognitive screening. Remember, it's not a medical device and professional consultation is recommended for any concerns.

**Highlights:** AI voice analysis, Dementia risk assessment, Early detection screening, Cognitive health check, Based on clinical data

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Memory Detective Use Pass | $1.00 | one-time |
| Memory Detective Gift Pass | $1.00 | one-time |
| Memory Detective Use Pass | $10.00 | one-time |
| Memory Detective Gift Pass | $10.00 | one-time |
| Memory Detective Use Pass | $20.00 | one-time |
| Memory Detective Gift Pass | $20.00 | one-time |
| Memory Detective Use Pass | $30.00 | one-time |
| Memory Detective Gift Pass | $30.00 | one-time |


## Frequently asked questions

### Is 데카르트 free?

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

### Is Memory Detective free?

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

### Which has better reviews, 데카르트 or Memory Detective?

데카르트 and Memory Detective are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do 데카르트 or Memory Detective have ads?

Memory Detective shows ads; 데카르트 does not.

### Which is updated more often, 데카르트 or Memory Detective?

데카르트 ships an update every 5 days, and Memory Detective every 4 weeks. Most recently, 데카르트 was updated on October 25, 2026 and Memory Detective on October 21, 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.*