# RAD vs Inspector's Link

RAD and Inspector's Link are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RAD ships an update every 3 weeks, Inspector's Link monthly. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | RAD | Inspector's Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rad-lab/id1567412980/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 109 MB | 16 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [femto-TECH, INC.](https://appshunter.io/developer/1498460992) | [Douglas Laurent](https://appshunter.io/developer/1466379519) |

## 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


### Inspector's Link

[App page](https://appshunter.io/ios/app/inspectors-link/id1579361398)

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

**In-app purchases:** none


## Frequently asked questions

### Is RAD free?

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

### Is Inspector's Link free?

Inspector's Link is free to download, with no in-app purchases.

### Do RAD or Inspector's Link have ads?

Neither RAD nor Inspector's Link shows ads.

### Which is updated more often, RAD or Inspector's Link?

RAD ships an update every 3 weeks, and Inspector's Link monthly. Most recently, RAD was updated on September 9, 2026 and Inspector's Link on September 10, 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.*