# 세라젬 마인드핏 vs Sleep Tech

The clearest difference is in-app purchases: 세라젬 마인드핏 at none against Sleep Tech's 2. 세라젬 마인드핏 also leads on iOS requirement (14.0 vs 18.4). Sleep Tech's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Sleep Tech sells 2 in-app purchases, starting at $1.99 per month. 세라젬 마인드핏 asks for nothing beyond the download.

세라젬 마인드핏 ships an update every 3 months, Sleep Tech every 2 weeks. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 세라젬 마인드핏 | Sleep Tech |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 56 MB | 53 MB |
| Requires iOS | **14.0** | 18.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [YBRAIN Inc.](https://appshunter.io/developer/1164027531) | [Hevers Co.,Ltd](https://appshunter.io/developer/1865857547) |

## What reviewers say

### 세라젬 마인드핏

[App page](https://appshunter.io/ios/app/id6450763891)

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

**In-app purchases:** none


### Sleep Tech

[App page](https://appshunter.io/ios/app/sleep-tech/id6757299435)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 프리미엄 구독 (1개월) | $1.99 | per month |
| 프리미엄 구독 (1년) | $19.99 | per year |


## Frequently asked questions

### Is 세라젬 마인드핏 free?

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

### Is Sleep Tech free?

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

### Do 세라젬 마인드핏 or Sleep Tech have ads?

Neither 세라젬 마인드핏 nor Sleep Tech shows ads.

### Which is updated more often, 세라젬 마인드핏 or Sleep Tech?

세라젬 마인드핏 ships an update every 3 months, and Sleep Tech every 2 weeks. Most recently, 세라젬 마인드핏 was updated on October 16, 2026 and Sleep Tech on October 18, 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.*