Data management: See image above.
Language: Choose the system language.
Capitalization: Choose capitals how you like, only for beginnings or completed words.
Icon badge pending: Show how many pending products you have in the App icon.
Show prices: Via bluetooth you can synchronize products and the shopping list with other devices, the sender and the responder should previously to be identified.
Default list: Choose the default list that will be used in the Let's buy area.
Default category: Choose the default category that will be added to each new product you create. You will be able to modify later if you want.
Clear data: The system delete all the products you have created.
Restore initial data: The system gives you back by default the original data.
Create backup: The system offers you the option for a security backup.
Restore from backup: If you created the backup, you can restore the data from it.
Synchronize devices: Via bluetooth you can synchronize products and the shopping list with other devices, the sender and the responder should previously to be identified.
Dropbox: Use your Dropbox account to synchronize the lists between multiple devices. If you don't have a Dropbox account, you can create one for free. More info at Dropbox
Send an e-mail: Send an e-mail with the current selected list.

