Chemtrol Web Server vs OPRA Events
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chemtrol Web Server
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.
- Remote monitoring
- Setting modification
- Data download
- Controller management
- Pool and spa control
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Connect from anywhere to your Chemtrol pool, spa, or cooling tower controller to monitor readings, modify settings, and download data.
OPRA Events
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OPRA is pleased to offer the “OPRA Meetings” app for this year’s conferences. Attendees are encouraged to download the app to stay connected and engaged throughout the event.
Screenshots
Verdict
The clearest difference is device support: OPRA Events at 3 against Chemtrol Web Server's —. On price, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Chemtrol Web Server | OPRA Events |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months | — |
| Ads | — | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | — | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 1 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Santa Barbara Control Systems Inc | ESX Inc. |
In-app purchases
Chemtrol Web Server
No in-app purchases
OPRA Events
No in-app purchases






