Last year, Tawkon offered its SAR App through the Apple App Store. However, recently Apple forcibly removed the SAR App from the App Store. We can only speculate that the infograph released by Tawkon made Apple turn its back on the said App.
Now if you are iPhone 4 or iPhone 4S owner, you will notice that the numbers given by the SAR App is quite scary. With the iPhone 4S emitting approximately 1.11 w/kg of radiation, one can only think why the new Samsung Galaxy S3 emits only 0.34 w/kg of radiation.
If you still want to know if the handset you are using emits high or low radiation, then you can go to Google Play Store and download the SAR app for free.