# Vanden Bussche Irrigation vs SUB

The clearest difference is update cadence: SUB at fortnightly against Vanden Bussche Irrigation's monthly. 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.

Vanden Bussche Irrigation ships an update monthly, SUB fortnightly. The most recent releases landed on September 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Vanden Bussche Irrigation | SUB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 45 MB | 35 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 12+ |
| Developer | [Vanden Bussche Irrigation & Equipment Limited](https://appshunter.io/developer/1792012327) | [Marmak Industries Ltd](https://appshunter.io/developer/1603074782) |

## What reviewers say

### Vanden Bussche Irrigation

[App page](https://appshunter.io/ios/app/vanden-bussche-irrigation/id6740872284)

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

**In-app purchases:** none


### SUB

[App page](https://appshunter.io/ios/app/sub-zero/id6752495110)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Vanden Bussche Irrigation free?

Vanden Bussche Irrigation is free to download, with no in-app purchases.

### Is SUB free?

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

### Do Vanden Bussche Irrigation or SUB have ads?

Neither Vanden Bussche Irrigation nor SUB shows ads.

### Which is updated more often, Vanden Bussche Irrigation or SUB?

Vanden Bussche Irrigation ships an update monthly, and SUB fortnightly. Most recently, Vanden Bussche Irrigation was updated on September 17, 2026 and SUB on October 16, 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.*