Use your smartphone as a Geiger counter to measure the radioactive radiation in your environment. The app uses the noise induced by the radioactive radiation in the smartphone's hardware to detect and quantify the radioactivity. The most part for the detection of the radioactivity is the camera chip of the smartphone.
The app was originally designed by SpitConsult and it relates to the Tools category. Radioactivity-Meter has been downloaded and set up by over 0,5K users and the latest update is dated Mar 5, 2012. Google Play shows that this application is rated 3.2 by its users.