This Privacy Policy describes BrickStore's policies and procedures on the collection, use and disclosure of your information when you use the app.
First and foremost: all data that is entered in the app never leaves your device! This of course explictly applies to your BrickLink username and password.
There is the option to send a bug report to the developer. This may include data about your currently open documents. However, this will never be sent without your consent and never without your manual interaction.
See this page for more information.
All the app's source code is open source and can be found on GitHub. Feel free to have a look and confirm this privacy policy.