# Paragon DC vs Chemtrol Web Server

Paragon DC and Chemtrol Web Server are too close to call on the numbers: across 4 compared parameters — price, update cadence, in-app purchases and iOS requirement among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Paragon DC | Chemtrol Web Server |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (4 ratings)](https://appshunter.io/ios/app/chemtrol-web-server/id6480072740/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Free |
| Size | 9 MB | 1 MB |
| Requires iOS | **12.3** | 13.0 |
| Devices | **iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Stantec GS Inc.](https://appshunter.io/developer/1224654507) | [Santa Barbara Control Systems Inc](https://appshunter.io/developer/960387757) |

## What reviewers say

### Paragon DC

[App page](https://appshunter.io/ios/app/paragon-dc/id952322862)

**Features:** macOS Compatibility

**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 Paragon DC free?

Paragon DC 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 is updated more often, Paragon DC or Chemtrol Web Server?

Paragon DC ships an update every 2 months, and Chemtrol Web Server every 2 months. Most recently, Paragon DC was updated on November 6, 2026 and Chemtrol Web Server on November 4, 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.*