# Air Quality Watch vs Steady

The clearest difference is iOS requirement: Steady at 15.1 against Air Quality Watch's 18.0. On price, update cadence, ads and in-app purchases 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 and Steady sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

Air Quality Watch ships an update every 2 weeks, Steady weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Air Quality Watch | Steady |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Subscription | — |
| Size | 10 MB | 46 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Steel](https://appshunter.io/developer/1719338589) | [Samy Naayma](https://appshunter.io/developer/6773054412) |

## What reviewers say

### 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 |


### Steady

[App page](https://appshunter.io/ios/app/steady-post-surgery-tracker/id6773054410)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Steady Plus Monthly | $14.99 | per month |
| 12-Month Unlock | $99.00 | one-time |


## Frequently asked questions

### Is Air Quality Watch free?

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

### Is Steady free?

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

### Do Air Quality Watch or Steady have ads?

Neither Air Quality Watch nor Steady shows ads.

### Which is updated more often, Air Quality Watch or Steady?

Air Quality Watch ships an update every 2 weeks, and Steady weekly. Most recently, Air Quality Watch was updated on October 30, 2026 and Steady on October 25, 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.*