# Pollution vs AirPro AQI

The clearest difference is in-app purchases: AirPro AQI at none against Pollution's 10. AirPro AQI also leads on ads (none vs shown). Pollution's advantage is ratings volume (18 vs 1). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Pollution sells 10 in-app purchases, starting at $1.19 per 7 days. AirPro AQI asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Pollution against 5.0 for AirPro AQI. That said, the two scores are not equally well evidenced: Pollution has 18 ratings behind it against 1, so its average is the more settled of the two.

Pollution ships an update every 3 weeks, AirPro AQI monthly. The most recent releases landed on September 28, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Pollution | AirPro AQI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (18 ratings)](https://appshunter.io/ios/app/pollution-pollen-widget/id1609071301/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/airpro-aqi/id6445855953/reviews)** |
| Number of ratings | **18** | 1 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 144 MB | 13 MB |
| Requires iOS | **15.6** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stolanapp](https://appshunter.io/developer/1833017712) | [Paul Dorsey](https://appshunter.io/developer/1240620211) |

## What reviewers say

### Pollution

[App page](https://appshunter.io/ios/app/pollution-pollen-widget/id1609071301)

Track real-time air quality and pollution levels in your area. Get detailed pollutant breakdowns, hourly and multi-day forecasts, and health recommendations to make informed decisions about your environment and well-being.

**Highlights:** Real-time Air Quality Index (AQI), Detailed pollutant breakdown, Hourly and 4-day forecasts, Smart notifications, Health recommendations, User-friendly design

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Umbrella - Premium | $1.19 | per 7 days |
| Umbrella - Premium | $2.19 | per 7 days |
| Air Quality Index - Premium | $2.29 | per month |
| Air Quality Premium Discount | $3.99 | per year |
| Umbrella - Premium | $4.29 | per month |
| Umbrella - Premium | $4.99 | per month |
| Air Quality Index - Premium | $5.69 | per year |
| Umbrella - Premium | $5.69 | per year |
| Air Quality Index - Premium | $11.49 | per year |
| Air Quality Index - Premium | $11.49 | per year |


### AirPro AQI

[App page](https://appshunter.io/ios/app/airpro-aqi/id6445855953)

This application connects to AirPro hardware to measure and track various particle sizes in the air. It provides detailed air quality data for users concerned about their environment.

**Highlights:** Measures 1um, 2um, 5um, 10um particles, Tracks air quality data, Connects to AirPro hardware, Provides detailed air quality readings

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

**In-app purchases:** none


## Frequently asked questions

### Is Pollution free?

Pollution is free to download, with in-app purchases available.

### Is AirPro AQI free?

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

### Which has better reviews, Pollution or AirPro AQI?

AirPro AQI is rated higher. Pollution averages 4.9 out of 5 from 18 ratings, while AirPro AQI averages 5.0 from 1 ratings.

### Do Pollution or AirPro AQI have ads?

Pollution shows ads; AirPro AQI does not.

### Which is updated more often, Pollution or AirPro AQI?

Pollution ships an update every 3 weeks, and AirPro AQI monthly. Most recently, Pollution was updated on September 28, 2026 and AirPro AQI on September 17, 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.*