# HybridForms vs RadonSketch

The clearest difference is in-app purchases: HybridForms at none against RadonSketch's 2. On price, update cadence, ads and device support there is nothing between them.

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

HybridForms ships an update every 6 weeks, RadonSketch every 4 weeks. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | HybridForms | RadonSketch |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 weeks** |
| Monetization | — | Freemium |
| Size | 35 MB | 67 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [icomedias GmbH](https://appshunter.io/developer/1333112192) | [Chad Smith](https://appshunter.io/developer/1840658074) |

## What reviewers say

### HybridForms

[App page](https://appshunter.io/ios/app/hybridforms/id1333112193)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is HybridForms free?

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

### Is RadonSketch free?

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

### Do HybridForms or RadonSketch have ads?

Neither HybridForms nor RadonSketch shows ads.

### Which is updated more often, HybridForms or RadonSketch?

HybridForms ships an update every 6 weeks, and RadonSketch every 4 weeks. Most recently, HybridForms was updated on October 7, 2026 and RadonSketch on October 3, 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.*