# RadonSketch vs SCT Suite

The clearest difference is in-app purchases: SCT Suite at none against RadonSketch's 2. SCT Suite also leads on update cadence (every 4 days vs monthly). RadonSketch's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. RadonSketch sells 2 in-app purchases, starting at $49.00 per month. SCT Suite asks for nothing beyond the download.

RadonSketch ships an update monthly, SCT Suite every 4 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RadonSketch | SCT Suite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/radonsketch/id6751263976/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 67 MB | 2 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Chad Smith](https://appshunter.io/developer/1840658074) | [SCT Consulting LLC](https://appshunter.io/developer/1894683129) |

## What reviewers say

### RadonSketch

[App page](https://appshunter.io/ios/app/radonsketch/id6751263976)

This tool simplifies radon mitigation workflows by helping professionals design systems, ensure compliance, and generate professional documentation. It streamlines the creation of diagrams, materials lists, and maintenance plans, saving time and reducing errors in the field.

**Highlights:** System Diagram Creator, Compliance Validation, Materials List Generator, OM&M Plan Creation, Secure Recordkeeping, Customizable for Every Job

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $49.00 | per month |
| Pro Annual | $490.00 | per year |


### SCT Suite

[App page](https://appshunter.io/ios/app/sct-suite/id6763898840)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RadonSketch free?

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

### Is SCT Suite free?

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

### Do RadonSketch or SCT Suite have ads?

SCT Suite shows ads; RadonSketch does not.

### Which is updated more often, RadonSketch or SCT Suite?

RadonSketch ships an update monthly, and SCT Suite every 4 days. Most recently, RadonSketch was updated on October 30, 2026 and SCT Suite 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.*