# ZVPLAN vs UWS WaterBoy

The clearest difference is iOS requirement: UWS WaterBoy at 13.0 against ZVPLAN's 15. On price, update cadence, ads and in-app purchases there is nothing between them.

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

ZVPLAN ships an update fortnightly, UWS WaterBoy every 11 days. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | ZVPLAN | UWS WaterBoy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 11 days** |
| Size | 44 MB | 31 MB |
| Requires iOS | 15 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ConSoft](https://appshunter.io/developer/397747217) | [UWS Technologie GmbH](https://appshunter.io/developer/1796564865) |

## What reviewers say

### ZVPLAN

[App page](https://appshunter.io/ios/app/zvplan/id1060104073)

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

**In-app purchases:** none


### UWS WaterBoy

[App page](https://appshunter.io/ios/app/uws-waterboy/id6742050402)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZVPLAN free?

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

### Is UWS WaterBoy free?

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

### Do ZVPLAN or UWS WaterBoy have ads?

Neither ZVPLAN nor UWS WaterBoy shows ads.

### Which is updated more often, ZVPLAN or UWS WaterBoy?

ZVPLAN ships an update fortnightly, and UWS WaterBoy every 11 days. Most recently, ZVPLAN was updated on September 20, 2026 and UWS WaterBoy on September 18, 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.*