When you use any of our apps on Android, we do not retrieve or store any personal about you. We do check if certain application is installed on your phone before we display an advertisement for the application (To avoid displaying advertisement for an app that is already on your phone) and use AdvertiserID to identify device and not the person.
We also use Google Admob SDK for advertisements in our applications.
Remember, though, there could be errors in the programming, and sometime programming errors may cause unwanted side effects.