# WaterLink Home vs Sutro

The clearest difference is rating: WaterLink Home at 4.6 against Sutro's 3.2. WaterLink Home also leads on review sentiment (28% vs 0%) and update cadence (every 6 weeks vs every 8 months). Sutro's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

WaterLink Home holds the better App Store score, 4.6 against 3.2. That said, the two scores are not equally well evidenced: WaterLink Home has 86 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 28% of WaterLink Home's written reviews are positive against 0% of Sutro's.

WaterLink Home ships an update every 6 weeks, Sutro every 8 months. The most recent releases landed on October 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | WaterLink Home | Sutro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (86 ratings)](https://appshunter.io/ios/app/waterlink-home/id1500943677/reviews)** | [3.2 (11 ratings)](https://appshunter.io/ios/app/sutro-pro/id1552389685/reviews) |
| Number of ratings | **86** | 11 |
| Positive reviews | **28.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 8 months |
| Monetization | Free | Free |
| Size | 130 MB | 65 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LaMotte Chemical Products Company](https://appshunter.io/developer/975652461) | [Sutro Connect Inc](https://appshunter.io/developer/1439627398) |

## What reviewers say

### WaterLink Home

[App page](https://appshunter.io/ios/app/waterlink-home/id1500943677)

This app provides detailed water analysis for pools and spas, offering step-by-step treatment recommendations. It supports multiple testing methods and allows customization of chemicals and dosage rates. Connect with professionals for tailored advice.

**Highlights:** Pool and spa water analysis, Step-by-step treatment recommendations, Multiple supported test methods, Customizable chemical and dosage rates, Historical test data storage, Connect with pool professionals

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

**In-app purchases:** none


### Sutro

[App page](https://appshunter.io/ios/app/sutro-pro/id1552389685)

This app connects multiple pool and spa monitoring devices to a single interface. It allows users to manage and view the status of all their connected Sutro devices from one convenient location.

**Highlights:** Connect multiple Sutro devices, Centralized device management, View device status, Route management for devices

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WaterLink Home free?

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

### Is Sutro free?

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

### Which has better reviews, WaterLink Home or Sutro?

WaterLink Home is rated higher. WaterLink Home averages 4.6 out of 5 from 86 ratings, while Sutro averages 3.2 from 11 ratings.

### Do WaterLink Home or Sutro have ads?

Neither WaterLink Home nor Sutro shows ads.

### Which is updated more often, WaterLink Home or Sutro?

WaterLink Home ships an update every 6 weeks, and Sutro every 8 months. Most recently, WaterLink Home was updated on October 29, 2026 and Sutro on October 6, 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.*