# Protimeter Connect vs IAQ 15

The clearest difference is rating: Protimeter Connect at 5.0 against IAQ 15's 1.5. Protimeter Connect also leads on review sentiment (25% vs 0%) and iOS requirement (13.0 vs 15.0). IAQ 15's advantage is ratings volume (4 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Protimeter Connect holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 25% of Protimeter Connect's written reviews are positive against 0% of IAQ 15's.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Protimeter Connect | IAQ 15 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/protimeter-connect/id1572286168/reviews)** | [1.5 (4 ratings)](https://appshunter.io/ios/app/iaq-15/id1618249564/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | Free |
| Size | 77 MB | 30 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Amphenol-Sensors](https://appshunter.io/developer/1086146573) | [Cole-Parmer Instrument Company](https://appshunter.io/developer/1221545005) |

## What reviewers say

### Protimeter Connect

[App page](https://appshunter.io/ios/app/protimeter-connect/id1572286168)

Connect to Protimeter devices to collect and monitor environmental data like moisture, humidity, and temperature. The application allows for continuous data reception and mode adjustments once paired.

**Highlights:** Connect to Protimeter devices, Collect moisture content data, Monitor Relative Humidity, Track Temperature, Continuous data reception, Adjust device modes

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

**In-app purchases:** none


### IAQ 15

[App page](https://appshunter.io/ios/app/iaq-15/id1618249564)

This app connects to specific hardware to retrieve and view environmental event records. It allows for saving data to a server, updating device firmware, and synchronizing time and location with your mobile device.

**Highlights:** Connects to IAQ 15 hardware via Bluetooth, Retrieves and views event records, Saves event records to server, Updates device firmware, Synchronizes device time and location

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

**In-app purchases:** none


## Frequently asked questions

### Is Protimeter Connect free?

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

### Is IAQ 15 free?

IAQ 15 is free to download, with no in-app purchases.

### Which has better reviews, Protimeter Connect or IAQ 15?

Protimeter Connect is rated higher. Protimeter Connect averages 5.0 out of 5 from 1 ratings, while IAQ 15 averages 1.5 from 4 ratings.

### Do Protimeter Connect or IAQ 15 have ads?

Neither Protimeter Connect nor IAQ 15 shows ads.

### Which is updated more often, Protimeter Connect or IAQ 15?

Protimeter Connect ships an update monthly, and IAQ 15 monthly. Most recently, Protimeter Connect was updated on November 3, 2026 and IAQ 15 on November 7, 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.*