# FreshAir Sensor vs UNetState Pro

The clearest difference is price: FreshAir Sensor at Free against UNetState Pro's $4.99. FreshAir Sensor also leads on update cadence (every 2 months vs every 8 months) and ratings volume (6 vs 1). UNetState Pro's advantage is review sentiment (100% vs 67%). On rating, ads, in-app purchases and device support there is nothing between them.

FreshAir Sensor is free to download; UNetState Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for FreshAir Sensor against 5.0 for UNetState Pro. That said, the two scores are not equally well evidenced: FreshAir Sensor has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 67% of FreshAir Sensor's written reviews are positive against 100% of UNetState Pro's.

FreshAir Sensor ships an update every 2 months, UNetState Pro every 8 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | FreshAir Sensor | UNetState Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/freshair-sensor/id1282065363/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/unetstate-pro-pingtracedns/id1489810610/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | **Free** | Paid |
| Size | 72 MB | 1 MB |
| Requires iOS | 15.2 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FreshAir Sensor](https://appshunter.io/developer/1282065362) | [齐 张](https://appshunter.io/developer/1489312796) |

## What reviewers say

### FreshAir Sensor

[App page](https://appshunter.io/ios/app/freshair-sensor/id1282065363)

This application allows you to set up and manage your FreshAir nicotine monitoring device. View real-time smoking alerts and monitor device status directly from your smartphone.

**Highlights:** Install FreshAir nicotine monitoring device, View FreshAir smoking alerts, Monitor device status, Receive real-time notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### UNetState Pro

[App page](https://appshunter.io/ios/app/unetstate-pro-pingtracedns/id1489810610)

This utility app helps network professionals and students diagnose and troubleshoot network connectivity issues. It offers a suite of tools to test network performance, identify routing problems, and resolve domain name issues.

**Highlights:** Ping and TCP Ping, UDP and ICMP Traceroute, NSLookup and DNS resolution, Port Scanning, LAN Active Device Scanning, Device Network Information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FreshAir Sensor free?

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

### Is UNetState Pro free?

UNetState Pro costs $4.99, with no in-app purchases.

### Which has better reviews, FreshAir Sensor or UNetState Pro?

FreshAir Sensor and UNetState Pro are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.

### Do FreshAir Sensor or UNetState Pro have ads?

Neither FreshAir Sensor nor UNetState Pro shows ads.

### Which is updated more often, FreshAir Sensor or UNetState Pro?

FreshAir Sensor ships an update every 2 months, and UNetState Pro every 8 months. Most recently, FreshAir Sensor was updated on October 24, 2026 and UNetState Pro on October 8, 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.*