This application will collect the following information about you.
And, to explain how to use it for any purpose that information.
User ID, Custom URL and Web API token
These pieces of information are used to issue a web API to Steam.
Information are stored on the storage of the device, and are used only for acquiring the game you own and its play results.
Saved information is stored only in the device and never sent to the network.
Your possession game, the achivements of games, information of your friend (Name and Icon).
When you view your player information, and save the contents to the local database.
This information is used to fast the display if you want to display the same information again.
Then, when you press the refresh button, save the information before you remove it.
Steam Achivements Viewer is in no way shape or form associated with Steam or Valve.