You can access the Settings via the Menu button in the lower right corner.
The settings
Language - You can choose the language of the application.
Manage features
Show features - define which functions you wish to display in the application.
Camera -With the Save photos to device library - option, you can save the photos taken with the application to you phone's photo library.
Notifications
Comments- choose whether you want the app to send a push notification to your phone about new comments on invoices.
Invoice verified, approved or paid - choose whether you want a push notification on your phone about invoices related to you that have been verified, approved or paid.