Getting Comfortable With The Basics

LastPass free vs premium:

LastPass free vs premium: Is it worth the upgrade? –  Joe Hindy

The app and browser extensions work the same for almost every platform. You log into the service, add your various accounts, and LastPass offers to auto-fill the login details when you reach any given website. Android, iOS, and PC all have slightly different methods to engage with it, but none of them are difficult. You should be able to get used to it after just a few logins.