Through Viber privacy is the topic again back in the spotlight. What exactly do the appmakers with your data? The Wall Street Journal has 101 iPhone and Android applications studied to see how things stand. They discovered that these apps a lot of data to the developer and ad networks to send. Often the user knows nothing and does not allow. What struck was that the iPhone apps were worse than Android apps. The data had been sent inter alia, location and unique ID of the phone.