# BRAIN! vs STC korea

The clearest difference is update cadence: BRAIN! at daily against STC korea's every 6 weeks. BRAIN! also leads on iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BRAIN! ships an update daily, STC korea every 6 weeks. The most recent releases landed on September 6, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | BRAIN! | STC korea |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 6 weeks |
| Size | 104 MB | 15 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TNQ Tech, Co.](https://appshunter.io/developer/1817559824) | [smartfit](https://appshunter.io/developer/1683035102) |

## What reviewers say

### BRAIN!

[App page](https://appshunter.io/ios/app/brain/id6747735697)

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

**In-app purchases:** none


### STC korea

[App page](https://appshunter.io/ios/app/stc-korea/id6754681562)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BRAIN! free?

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

### Is STC korea free?

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

### Do BRAIN! or STC korea have ads?

Neither BRAIN! nor STC korea shows ads.

### Which is updated more often, BRAIN! or STC korea?

BRAIN! ships an update daily, and STC korea every 6 weeks. Most recently, BRAIN! was updated on September 6, 2026 and STC korea on September 5, 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.*