To get to the settings section of Wunderlist on Android, please press the Menu button on your phone while in the list or task overview. You can also tap on More at the bottom right of the list overview.
General
Background - This option allows you to choose a different background for your Wunderlist.
Date Format - Here you can change the date format to fit your local standards. Right now you can choose between dd.mm.yyyy, mm/dd/yyyy and dd/mm/yyyy.
Language - Here you can change the language to your prefered one. To activate the changes, please restart the App.
Add tasks by email - This option allows you to test our Mail2Task function. You can read more about this feature here.
Account
Edit - This option allows you to change your email address and/or password. You'll have to enter your current password to confirm the changes. If you have any problems, please have a look here.
Delete - This option allows you to delete your Wunderlist account. You'll have to enter your current email address and password to confirm the deletion. Please notice: if you delete your account, all your data will be deleted and can't be recreated.
Logout - If you wish to stop using Wunderlist for a period of time, or if you are having any problems, hit the 'Log Out' button. You can always log back in again using the main screen.