# vision.app vs Air Quality Watch

The clearest difference is in-app purchases: vision.app at none against Air Quality Watch's 2. vision.app also leads on iOS requirement (16.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Air Quality Watch sells 2 in-app purchases, starting at $1.99 per 7 days. vision.app asks for nothing beyond the download.

vision.app ships an update every 3 weeks, Air Quality Watch every 2 weeks. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | vision.app | Air Quality Watch |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Subscription |
| Size | 10 MB | 10 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Capital Certainty SL](https://appshunter.io/developer/1117827708) | [Daniel Steel](https://appshunter.io/developer/1719338589) |

## What reviewers say

### vision.app

[App page](https://appshunter.io/ios/app/visionapp/id6446076850)

**In-app purchases:** none


### Air Quality Watch

[App page](https://appshunter.io/ios/app/air-quality-watch/id6740650396)

Monitor your indoor air quality with real-time tracking of PM2.5, PM10, CO₂, temperature, and humidity. Get personalized recommendations and alerts to optimize your environment. Integrates seamlessly with Apple devices for convenient access.

**Highlights:** Real-time PM2.5 and PM10 tracking, CO₂ level monitoring, Temperature and humidity insights, Apple Watch complications, Lock Screen and Home Screen widgets, Personalized air quality recommendations, Environmental alerts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Yearly Pro Subscription | $29.99 | per year |


## Frequently asked questions

### Is vision.app free?

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

### Is Air Quality Watch free?

Air Quality Watch is free to download, with in-app purchases available.

### Do vision.app or Air Quality Watch have ads?

Neither vision.app nor Air Quality Watch shows ads.

### Which is updated more often, vision.app or Air Quality Watch?

vision.app ships an update every 3 weeks, and Air Quality Watch every 2 weeks. Most recently, vision.app was updated on October 18, 2026 and Air Quality Watch on October 24, 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.*