# AQI vs Pollution

The clearest difference is rating: Pollution at 4.9 against AQI's 3.4. Pollution also leads on review sentiment (83% vs 42%) and iOS requirement (15.6 vs 17.6). AQI's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, ratings volume 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. AQI asks for nothing beyond the download.

Pollution holds the better App Store score, 4.9 against 3.4. Both are backed by a comparable volume of ratings — 16 and 18 respectively. Written reviews point the same way: 42% of AQI's written reviews are positive against 83% of Pollution's.

AQI ships an update every 5 days, Pollution every 3 weeks. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | AQI | Pollution |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (16 ratings)](https://appshunter.io/ios/app/aqi/id1439684571/reviews) | **[4.9 (18 ratings)](https://appshunter.io/ios/app/pollution-pollen-widget/id1609071301/reviews)** |
| Number of ratings | 16 | **18** |
| Positive reviews | 41.9% of reviews | **83.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 208 MB | 144 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Purelogic Labs India Private Limited](https://appshunter.io/developer/704067891) | [Stolanapp](https://appshunter.io/developer/1833017712) |

## What reviewers say

### AQI

[App page](https://appshunter.io/ios/app/aqi/id1439684571)

This app provides real-time air quality index and weather data from local monitoring stations. It alerts you to air quality levels and helps you plan outdoor activities. Track pollutants like PM2.5 and CO for healthier living.

**Highlights:** Real-time and historic air quality data, Global AQI map with 10,500+ stations, Air quality monitor dashboard, On-the-go AQI widget, Health advice based on AQI, Live world air quality ranking

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is AQI free?

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

### Is Pollution free?

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

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

Pollution is rated higher. AQI averages 3.4 out of 5 from 16 ratings, while Pollution averages 4.9 from 18 ratings.

### Do AQI or Pollution have ads?

Pollution shows ads; AQI does not.

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

AQI ships an update every 5 days, and Pollution every 3 weeks. Most recently, AQI was updated on October 16, 2026 and Pollution on October 14, 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.*