# 브레인오케이 vs Sleep Focus

The clearest difference is in-app purchases: 브레인오케이 at none against Sleep Focus's 2. 브레인오케이 also leads on ratings volume (3 vs 1). Sleep Focus's advantage is update cadence (every 2 days vs every 2 weeks). On price, rating, ads and device support there is nothing between them.

Both are free to download. Sleep Focus sells 2 one-off in-app purchases. 브레인오케이 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for 브레인오케이 against 5.0 for Sleep Focus. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

브레인오케이 ships an update every 2 weeks, Sleep Focus every 2 days. The most recent releases landed on September 28, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 브레인오케이 | Sleep Focus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/5/id1664309524/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sleep-focus-bedtime-app-lock/id6797113744/reviews) |
| Number of ratings | **3** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 330 MB | 26 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Beluga Corp.](https://appshunter.io/developer/1664309526) | [Insight&myung, LLC](https://appshunter.io/developer/1752352451) |

## What reviewers say

### 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


### Sleep Focus

[App page](https://appshunter.io/ios/app/sleep-focus-bedtime-app-lock/id6797113744)

This app helps you reclaim your sleep by locking distracting applications during your chosen bedtime and wake-up times. It uses your device's built-in screen time features to enforce the schedule, ensuring you stay off your phone until morning. Calls and texts remain accessible for emergencies.

**Highlights:** Locks distracting apps during set sleep window, Automatic unlock at wake time, Uses Apple's Screen Time for robust locking, Calls and texts remain accessible, Optional one-time purchase for early unlock, No account or sign-up required

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 일찍 풀기 | $0.99 | one-time |
| 일찍 풀기2 | $1.99 | one-time |


## Frequently asked questions

### Is 브레인오케이 free?

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

### Is Sleep Focus free?

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

### Which has better reviews, 브레인오케이 or Sleep Focus?

브레인오케이 and Sleep Focus are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do 브레인오케이 or Sleep Focus have ads?

Neither 브레인오케이 nor Sleep Focus shows ads.

### Which is updated more often, 브레인오케이 or Sleep Focus?

브레인오케이 ships an update every 2 weeks, and Sleep Focus every 2 days. Most recently, 브레인오케이 was updated on September 28, 2026 and Sleep Focus on October 12, 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.*