# SU Valve vs Niagara 4Valve Controller

The clearest difference is update cadence: SU Valve at monthly against Niagara 4Valve Controller's every 2 months. 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.

SU Valve ships an update monthly, Niagara 4Valve Controller every 2 months. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SU Valve | Niagara 4Valve Controller |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 62 MB | 27 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DrM, Dr. Mueller AG](https://appshunter.io/developer/1453394493) | [Niagara Automation](https://appshunter.io/developer/1459220336) |

## What reviewers say

### SU Valve

[App page](https://appshunter.io/ios/app/su-valve/id1505306030)

**Features:** macOS Compatibility

**In-app purchases:** none


### Niagara 4Valve Controller

[App page](https://appshunter.io/ios/app/niagara-4valve-controller/id1641708221)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SU Valve free?

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

### Is Niagara 4Valve Controller free?

Niagara 4Valve Controller is free to download, with no in-app purchases.

### Do SU Valve or Niagara 4Valve Controller have ads?

Neither SU Valve nor Niagara 4Valve Controller shows ads.

### Which is updated more often, SU Valve or Niagara 4Valve Controller?

SU Valve ships an update monthly, and Niagara 4Valve Controller every 2 months. Most recently, SU Valve was updated on October 19, 2026 and Niagara 4Valve Controller on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*