# Sitrad vs Coel Online

The clearest difference is update cadence: Sitrad at every 6 weeks against Coel Online's every 7 months. Sitrad also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Sitrad ships an update every 6 weeks, Coel Online every 7 months. The most recent releases landed on September 21, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Sitrad | Coel Online |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (5 ratings)](https://appshunter.io/ios/app/sitrad/id538790187/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 7 months |
| Monetization | Free | — |
| Size | 27 MB | 198 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Full Gauge Controls](https://appshunter.io/developer/538790610) | [Coelmatic Ltda](https://appshunter.io/developer/1642570199) |

## What reviewers say

### Sitrad

[App page](https://appshunter.io/ios/app/sitrad/id538790187)

Remotely manage and monitor industrial, commercial, and residential systems like cold rooms and air conditioning. Continuously evaluate, configure, and store data such as temperature and humidity, with the ability to modify parameters from anywhere via the internet.

**Highlights:** Remote system administration, Modify controller variables and functions, Monitor temperature, humidity, time, pressure, voltage, Generate graphs and reports, Receive warning messages, Manage unlimited control points

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

**In-app purchases:** none


### Coel Online

[App page](https://appshunter.io/ios/app/coel-online/id1642570197)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sitrad free?

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

### Is Coel Online free?

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

### Do Sitrad or Coel Online have ads?

Neither Sitrad nor Coel Online shows ads.

### Which is updated more often, Sitrad or Coel Online?

Sitrad ships an update every 6 weeks, and Coel Online every 7 months. Most recently, Sitrad was updated on September 21, 2026 and Coel Online on September 13, 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.*