# WaterLink Solutions PRO vs Sutro

The clearest difference is review sentiment: WaterLink Solutions PRO at 31% against Sutro's 0%. WaterLink Solutions PRO also leads on update cadence (every 3 months vs every 8 months). Sutro's advantage is rating (3.2 vs 2.9). On price, ratings volume, 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.

Sutro holds the better App Store score, 3.2 against 2.9. Both are backed by a comparable volume of ratings — 21 and 11 respectively. Written reviews complicate that: 31% of WaterLink Solutions PRO's written reviews are positive against 0% of Sutro's, so the app with the better star average is not the one people write more warmly about.

WaterLink Solutions PRO ships an update every 3 months, Sutro every 8 months. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | WaterLink Solutions PRO | Sutro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (21 ratings)](https://appshunter.io/ios/app/waterlink-solutions-pro/id1398371628/reviews) | **[3.2 (11 ratings)](https://appshunter.io/ios/app/sutro-pro/id1552389685/reviews)** |
| Number of ratings | **21** | 11 |
| Positive reviews | **30.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Free | Free |
| Size | 95 MB | 65 MB |
| Requires iOS | **11.2** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [LaMotte Chemical Products Company](https://appshunter.io/developer/975652461) | [Sutro Connect Inc](https://appshunter.io/developer/1439627398) |

## What reviewers say

### WaterLink Solutions PRO

[App page](https://appshunter.io/ios/app/waterlink-solutions-pro/id1398371628)

This app allows professionals to manage water analysis data, including property, contact, and site records. It facilitates water testing and seamlessly transfers results from compatible devices via Bluetooth for fast, accurate insights.

**Highlights:** Manage property, contact, and site records, Perform water tests, Transfer results via Bluetooth, Access data anywhere, Supports commercial water professionals

**Features:** macOS Compatibility

**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 Solutions PRO free?

WaterLink Solutions PRO 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 Solutions PRO or Sutro?

Sutro is rated higher. WaterLink Solutions PRO averages 2.9 out of 5 from 21 ratings, while Sutro averages 3.2 from 11 ratings.

### Do WaterLink Solutions PRO or Sutro have ads?

Neither WaterLink Solutions PRO nor Sutro shows ads.

### Which is updated more often, WaterLink Solutions PRO or Sutro?

WaterLink Solutions PRO ships an update every 3 months, and Sutro every 8 months. Most recently, WaterLink Solutions PRO was updated on October 24, 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.*