If you live in Santa Barbara County your house could have radon and you could be at risk for lung cancer! Radon is a colorless and odorless gas that occurs naturally in the ground.

Use this interactive map to determine your risk level. Zoom and scroll to check locations or use your current location as determined by GPS.

Risk levels are provided by the California Geological Survey.

Test your home today!

What’s New

Version 3.2

Button layout improvements
Updates for recent iOS
Updates for iPhone X

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Concerned citizen2 ,

Limited to SB county?

Appears to be specific to Santa Barbara county. No data in app for the rest of the country.

JMS in Texas ,


Totally worthless unless you live in Santa Barbara.

App Privacy

The developer, Toonsy Net, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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