# PRO vs Corentium Pro by Airthings

The clearest difference is rating: PRO at 4.9 against Corentium Pro by Airthings's 2.3. PRO also leads on update cadence (every 2 weeks vs every 2 months) and review sentiment (30% vs 21%). Corentium Pro by Airthings's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On price, ads, 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.

PRO holds the better App Store score, 4.9 against 2.3. Both are backed by a comparable volume of ratings — 109 and 24 respectively. Written reviews point the same way: 30% of PRO's written reviews are positive against 21% of Corentium Pro by Airthings's.

PRO ships an update every 2 weeks, Corentium Pro by Airthings every 2 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PRO | Corentium Pro by Airthings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (109 ratings)](https://appshunter.io/ios/app/pro-lab-247/id1251063238/reviews)** | [2.3 (24 ratings)](https://appshunter.io/ios/app/corentium-pro-by-airthings/id1493964577/reviews) |
| Number of ratings | **109** | 24 |
| Positive reviews | **30.0% of reviews** | 20.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 9 MB | 57 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Professional Laboratories](https://appshunter.io/developer/1251063237) | [Airthings ASA](https://appshunter.io/developer/1101077902) |

## What reviewers say

### PRO

[App page](https://appshunter.io/ios/app/pro-lab-247/id1251063238)

Access comprehensive laboratory testing for environmental pollutants like mold, radon, and lead. This service is backed by certified professionals and offers simplified processing with bundled supplies and analysis fees.

**Highlights:** Mold testing, Radon testing, Lead testing, Allergen testing, Asbestos testing, Drinking water analysis, Certified professionals

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

**In-app purchases:** none


### Corentium Pro by Airthings

[App page](https://appshunter.io/ios/app/corentium-pro-by-airthings/id1493964577)

This application connects to a specific radon instrument to initiate tests, collect data, and create customized reports. It features a redesigned interface for easier navigation and an online dashboard for data storage and analysis. Professionals can add property details, photos, and secure instruments to their company.

**Highlights:** Connect to Corentium Pro Radon instrument, Start radon tests remotely, Retrieve test data, Generate custom reports, Redesigned user interface, Online dashboard for data storage, Secure instrument to company

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PRO free?

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

### Is Corentium Pro by Airthings free?

Corentium Pro by Airthings is free to download, with no in-app purchases.

### Which has better reviews, PRO or Corentium Pro by Airthings?

PRO is rated higher. PRO averages 4.9 out of 5 from 109 ratings, while Corentium Pro by Airthings averages 2.3 from 24 ratings.

### Do PRO or Corentium Pro by Airthings have ads?

Neither PRO nor Corentium Pro by Airthings shows ads.

### Which is updated more often, PRO or Corentium Pro by Airthings?

PRO ships an update every 2 weeks, and Corentium Pro by Airthings every 2 months. Most recently, PRO was updated on October 26, 2026 and Corentium Pro by Airthings on October 24, 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.*