# FreshAir Sensor vs ZeroScan

The clearest difference is price: FreshAir Sensor at Free against ZeroScan's $0.99. FreshAir Sensor also leads on update cadence (every 2 months vs every 6 months) and iOS requirement (15.2 vs 17.0). ZeroScan's advantage is review sentiment (100% vs 67%). On rating, ratings volume, ads and in-app purchases there is nothing between them.

FreshAir Sensor is free to download; ZeroScan costs $0.99 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 ZeroScan. Both are backed by a comparable volume of ratings — 6 and 3 respectively. Written reviews are what separate them: 67% of FreshAir Sensor's written reviews are positive against 100% of ZeroScan's.

FreshAir Sensor ships an update every 2 months, ZeroScan every 6 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | FreshAir Sensor | ZeroScan |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/freshair-sensor/id1282065363/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/zeroscan/id1508942351/reviews) |
| Number of ratings | **6** | 3 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | **Free** | Paid |
| Size | 72 MB | 1 MB |
| Requires iOS | **15.2** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [FreshAir Sensor](https://appshunter.io/developer/1282065362) | [Jordan Parsons](https://appshunter.io/developer/1508942350) |

## 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


### ZeroScan

[App page](https://appshunter.io/ios/app/zeroscan/id1508942351)

Discover network devices and their services effortlessly. This tool listens for broadcasting zeroconf services, displaying IP addresses and open ports without active probing. Customize scan intervals and result display for a seamless network overview.

**Highlights:** Zeroconf (mDNS, DNS-SD, Bonjour) service discovery, Automatic network rescanning, Customizable scan intervals, Adjustable result display duration, Clipboard copy customization, Manual service searching

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FreshAir Sensor free?

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

### Is ZeroScan free?

ZeroScan costs $0.99, with no in-app purchases.

### Which has better reviews, FreshAir Sensor or ZeroScan?

FreshAir Sensor and ZeroScan are both rated 5.0 out of 5 on the App Store, from 6 and 3 ratings respectively.

### Do FreshAir Sensor or ZeroScan have ads?

Neither FreshAir Sensor nor ZeroScan shows ads.

### Which is updated more often, FreshAir Sensor or ZeroScan?

FreshAir Sensor ships an update every 2 months, and ZeroScan every 6 months. Most recently, FreshAir Sensor was updated on November 3, 2026 and ZeroScan on November 3, 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.*