Balance! for Barclays, Nationwide , Santander & Google Play is a google extension that makes purchasing online just that bit easier and faster for you! Have you ever been looking to purchase online and then find yourself having to open a whole new tab to open your online banking account to then see if you can afford your desired item? well 'Balance!' makes this process faster and easier with just one click! You click the Balance logo on your chrome task bar , and you are redirected to your Barclays online banking profile Where your balance is displayed right there in front of you with just one click!.