# Pentair Pro vs Chemtrol Web Server

The clearest difference is rating: Pentair Pro at 4.7 against Chemtrol Web Server's 3.5. Pentair Pro also leads on ratings volume (454 vs 4) and device support. Chemtrol Web Server's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, 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.

Pentair Pro holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Pentair Pro has 454 ratings behind it against 4, so its average is the more settled of the two.

Pentair Pro ships an update every 6 weeks, Chemtrol Web Server every 2 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Pentair Pro | Chemtrol Web Server |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (454 ratings)](https://appshunter.io/ios/app/pentair-pro/id1462255195/reviews)** | [3.5 (4 ratings)](https://appshunter.io/ios/app/chemtrol-web-server/id6480072740/reviews) |
| Number of ratings | **454** | 4 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 111 MB | 1 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Pentair, Inc.](https://appshunter.io/developer/528391851) | [Santa Barbara Control Systems Inc](https://appshunter.io/developer/960387757) |

## What reviewers say

### Pentair Pro

[App page](https://appshunter.io/ios/app/pentair-pro/id1462255195)

This app connects service professionals to their customers' water systems, enabling remote monitoring, proactive alerts, and efficient diagnostics. It helps build trust, save time on service calls, and generate new leads by providing access to system history and support resources.

**Highlights:** Remote system monitoring and alerts, Proactive customer notifications, Remote diagnostics and troubleshooting, Access to online manuals and videos, Lead generation through Pro Locator, System history and status dashboard

**In-app purchases:** none


### Chemtrol Web Server

[App page](https://appshunter.io/ios/app/chemtrol-web-server/id6480072740)

Access and manage your Chemtrol pool, spa, or cooling tower controller remotely. Monitor real-time readings, adjust settings, and download historical data for comprehensive control.

**Highlights:** Remote monitoring, Setting modification, Data download, Controller management, Pool and spa control

**In-app purchases:** none


## Frequently asked questions

### Is Pentair Pro free?

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

### Is Chemtrol Web Server free?

Chemtrol Web Server is free to download, with no in-app purchases.

### Which has better reviews, Pentair Pro or Chemtrol Web Server?

Pentair Pro is rated higher. Pentair Pro averages 4.7 out of 5 from 454 ratings, while Chemtrol Web Server averages 3.5 from 4 ratings.

### Which is updated more often, Pentair Pro or Chemtrol Web Server?

Pentair Pro ships an update every 6 weeks, and Chemtrol Web Server every 2 months. Most recently, Pentair Pro was updated on October 29, 2026 and Chemtrol Web Server on October 25, 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.*