Download the Companion Browser Add-on to your PC and we’ll be by your side wherever you shop for online groceries. We’ll show you how to save in ways your store can’t. If you are on the Tesco, Sainsburys, Asda, Waitrose or Ocado grocery sites, when you start filling your basket – up it pops in the corner to compare prices and show potential savings. It’s always watching your back. Your reliable friend.