I can't find a calader do we have one
Nah you are fine.
if you long press on your screen you will see the option to add a widget.
if you hit the little up arrow button next to phone on yor screen...a whole new world of apps awaits. You must not be coming from a smarthphone. Unlike regular phones, android works with a system that doesnt place all of your apps on the screen alone. You can make folders shortcuts and things to apps stored on the phone.