# RAD vs Radiotherapy Tools

The clearest difference is price: RAD at Free against Radiotherapy Tools's $17.99. RAD also leads on in-app purchases (none vs 1) and iOS requirement (11.0 vs 17). On update cadence, ads and device support there is nothing between them.

RAD is free to download; Radiotherapy Tools costs $17.99 up front. Radiotherapy Tools sells 1 in-app purchase, starting at $29.99 per year. RAD asks for nothing beyond the download.

RAD ships an update every 3 weeks, Radiotherapy Tools every 2 weeks. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | RAD | Radiotherapy Tools |
| --- | --- | --- |
| Price | **Free** | $17.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rad-lab/id1567412980/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 109 MB | 29 MB |
| Requires iOS | **11.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [femto-TECH, INC.](https://appshunter.io/developer/1498460992) | [Yavuz Erol](https://appshunter.io/developer/1797117198) |

## What reviewers say

### RAD

[App page](https://appshunter.io/ios/app/rad-lab/id1567412980)

Connect to continuous radon monitoring devices to download and analyze radon data. Generate PDF reports directly from the app for easy sharing and record-keeping.

**Highlights:** Connect to femto-TECH CRM devices, Download radon monitoring data, Analyze collected data, Generate PDF reports, Data export functionality

**In-app purchases:** none


### Radiotherapy Tools

[App page](https://appshunter.io/ios/app/radiotherapy-tools/id6742157886)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $29.99 | per year |


## Frequently asked questions

### Is RAD free?

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

### Is Radiotherapy Tools free?

Radiotherapy Tools costs $17.99, and also offers in-app purchases.

### Do RAD or Radiotherapy Tools have ads?

Neither RAD nor Radiotherapy Tools shows ads.

### Which is updated more often, RAD or Radiotherapy Tools?

RAD ships an update every 3 weeks, and Radiotherapy Tools every 2 weeks. Most recently, RAD was updated on September 9, 2026 and Radiotherapy Tools on September 21, 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.*