# Parameter vs WaterBoy

The clearest difference is in-app purchases: WaterBoy at none against Parameter's 1. Parameter's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Parameter sells 1 in-app purchase, starting at $1.00 per month. WaterBoy asks for nothing beyond the download.

Parameter ships an update every 2 days, WaterBoy every 3 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Parameter | WaterBoy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/parameter/id6788824119/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 20 MB | 6 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, Apple Watch | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [JACOB CLINTON PEWITT YANCEY](https://appshunter.io/developer/6788824121) | [Stein & Company, LLC](https://appshunter.io/developer/1669806652) |

## What reviewers say

### Parameter

[App page](https://appshunter.io/ios/app/parameter/id6788824119)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Parameter Monthly | $1.00 | per month |


### WaterBoy

[App page](https://appshunter.io/ios/app/waterboy-water-reminder/id6800736575)

**In-app purchases:** none


## Frequently asked questions

### Is Parameter free?

Parameter is free to download, with in-app purchases available.

### Is WaterBoy free?

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

### Do Parameter or WaterBoy have ads?

Neither Parameter nor WaterBoy shows ads.

### Which is updated more often, Parameter or WaterBoy?

Parameter ships an update every 2 days, and WaterBoy every 3 weeks. Most recently, Parameter was updated on October 24, 2026 and WaterBoy on October 20, 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.*