# Pollution vs WindScope,Learn Weather Charts

The clearest difference is price: Pollution at Free against WindScope,Learn Weather Charts's $0.99. Pollution also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (15.6 vs 17.6). WindScope,Learn Weather Charts's advantage is in-app purchases (none vs 10) and ads (none vs shown). On device support there is nothing between them.

Pollution is free to download; WindScope,Learn Weather Charts costs $0.99 up front. Pollution sells 10 in-app purchases, starting at $1.19 per 7 days. WindScope,Learn Weather Charts asks for nothing beyond the download.

Pollution ships an update every 3 weeks, WindScope,Learn Weather Charts every 4 months. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Pollution | WindScope,Learn Weather Charts |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.9 (18 ratings)](https://appshunter.io/ios/app/pollution-pollen-widget/id1609071301/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 144 MB | 3 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stolanapp](https://appshunter.io/developer/1833017712) | [Stolk.cc](https://appshunter.io/developer/313529099) |

## 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 |


### WindScope,Learn Weather Charts

[App page](https://appshunter.io/ios/app/windscopelearn-weather-charts/id6744020519)

**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 WindScope,Learn Weather Charts free?

WindScope,Learn Weather Charts costs $0.99, with no in-app purchases.

### Do Pollution or WindScope,Learn Weather Charts have ads?

Pollution shows ads; WindScope,Learn Weather Charts does not.

### Which is updated more often, Pollution or WindScope,Learn Weather Charts?

Pollution ships an update every 3 weeks, and WindScope,Learn Weather Charts every 4 months. Most recently, Pollution was updated on September 23, 2026 and WindScope,Learn Weather Charts on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*