# GrowDirector 3 PRO vs Hydrostation

The clearest difference is update cadence: GrowDirector 3 PRO at monthly against Hydrostation's every 3 months. GrowDirector 3 PRO also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

GrowDirector 3 PRO ships an update monthly, Hydrostation every 3 months. The most recent releases landed on September 13, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | GrowDirector 3 PRO | Hydrostation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Size | 43 MB | 2 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [GrowDirecto](https://appshunter.io/developer/1688703139) | [Ebara Pumps Europe S.p.A.](https://appshunter.io/developer/1736991874) |

## What reviewers say

### GrowDirector 3 PRO

[App page](https://appshunter.io/ios/app/growdirector-3-pro/id6449358084)

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

**In-app purchases:** none


### Hydrostation

[App page](https://appshunter.io/ios/app/hydrostation/id6479708636)

**In-app purchases:** none


## Frequently asked questions

### Is GrowDirector 3 PRO free?

GrowDirector 3 PRO is free to download, with no in-app purchases.

### Is Hydrostation free?

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

### Do GrowDirector 3 PRO or Hydrostation have ads?

Neither GrowDirector 3 PRO nor Hydrostation shows ads.

### Which is updated more often, GrowDirector 3 PRO or Hydrostation?

GrowDirector 3 PRO ships an update monthly, and Hydrostation every 3 months. Most recently, GrowDirector 3 PRO was updated on September 13, 2026 and Hydrostation on September 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.*