# B.R.A.IN. vs S4_control

The clearest difference is update cadence: B.R.A.IN. at every 3 months against S4_control's every 9 months. S4_control's advantage is iOS requirement (9.0 vs 15.0). 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.

B.R.A.IN. ships an update every 3 months, S4_control every 9 months. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | B.R.A.IN. | S4_control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Size | 78 MB | 108 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SISGEO S.r.l](https://appshunter.io/developer/1439891075) | [GUANDDONG TIANPU TECHNOLOGY GROUP CO.,LTD.](https://appshunter.io/developer/1637560013) |

## What reviewers say

### B.R.A.IN.

[App page](https://appshunter.io/ios/app/brain-sisgeo/id1439891076)

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

**In-app purchases:** none


### S4_control

[App page](https://appshunter.io/ios/app/s4-control/id6532592331)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is B.R.A.IN. free?

B.R.A.IN. is free to download, with no in-app purchases.

### Is S4_control free?

S4_control is free to download, with no in-app purchases.

### Do B.R.A.IN. or S4_control have ads?

Neither B.R.A.IN. nor S4_control shows ads.

### Which is updated more often, B.R.A.IN. or S4_control?

B.R.A.IN. ships an update every 3 months, and S4_control every 9 months. Most recently, B.R.A.IN. was updated on October 24, 2026 and S4_control on October 10, 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.*