# Radoff vs FitSight

The clearest difference is in-app purchases: Radoff at none against FitSight's 3. Radoff also leads on iOS requirement (15.6 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. FitSight sells 3 in-app purchases, starting at $4.99 per month. Radoff asks for nothing beyond the download.

Radoff ships an update every 5 weeks, FitSight every 3 weeks. The most recent releases landed on September 9, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Radoff | FitSight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/radoff/id1607852470/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 73 MB | 19 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Radoff S.p.A.](https://appshunter.io/developer/1756269459) | [RAJA RAHEES TAHIR](https://appshunter.io/developer/1719893146) |

## What reviewers say

### Radoff

[App page](https://appshunter.io/ios/app/radoff/id1607852470)

This app monitors indoor air quality, detecting pollutants like radon, CO2, and VOCs. It provides real-time data, historical trends, and smart notifications to help you create a healthier living environment. Easily understand complex readings and receive actionable tips for improvement.

**Highlights:** Comprehensive indoor monitoring, Real-time data access, Historical data and graphs, Smart notifications and alerts, Easy-to-interpret readings, Smart Home Integration

**Features:** macOS Compatibility

**In-app purchases:** none


### FitSight

[App page](https://appshunter.io/ios/app/fitsight/id6752625846)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $29.99 | per year |
| Lifetime Subscription | $79.99 | one-time |


## Frequently asked questions

### Is Radoff free?

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

### Is FitSight free?

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

### Do Radoff or FitSight have ads?

Neither Radoff nor FitSight shows ads.

### Which is updated more often, Radoff or FitSight?

Radoff ships an update every 5 weeks, and FitSight every 3 weeks. Most recently, Radoff was updated on September 9, 2026 and FitSight on September 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.*