# Air Quality Watch vs Rep Track

The clearest difference is monetization model: Rep Track at free with in-app purchases against Air Quality Watch's subscription. Air Quality Watch's advantage is device support (3 vs 1) and iOS requirement (18.0 vs 26.0). 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 Rep Track sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Air Quality Watch | Rep Track |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (5 ratings)](https://appshunter.io/ios/app/rep-track-workout-tracker/id6759986590/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 10 MB | 7 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Steel](https://appshunter.io/developer/1719338589) | [Taylor Cascino](https://appshunter.io/developer/1882107919) |

## 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 |


### Rep Track

[App page](https://appshunter.io/ios/app/rep-track-workout-tracker/id6759986590)

Log unlimited workouts with this private, ad-free fitness tracker. Features smart suggestions, PR detection, and rest timers. Unlock advanced analytics and unlimited history with a one-time Pro purchase.

**Highlights:** Log unlimited workouts, Smart workout suggestions, PR detection with haptics, Rest timer with haptic feedback, Workout history export, Full analytics (Pro), Calendar view (Pro)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rep Track Pro | $4.99 | one-time |


## Frequently asked questions

### Is Air Quality Watch free?

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

### Is Rep Track free?

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

### Do Air Quality Watch or Rep Track have ads?

Neither Air Quality Watch nor Rep Track shows ads.

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

Air Quality Watch ships an update every 2 weeks, and Rep Track every 2 weeks. Most recently, Air Quality Watch was updated on November 4, 2026 and Rep Track on November 5, 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.*