When you're done with your shopping, you don't have to wait for a clerk to tell you you can leave. Just finalize payment in the app and be on your way.
Skip tells you your total while you shop. So you'll never have to ballpark it in your head and then dump a few items when you get to checkout and find out you're $100 over budget. Not that you've ever done that.
With Skip, coupons are built-in and pop up whenever you can use them. So leave your baseball card binder at home where it belongs: with the baseball cards you totally still have even though they're completely obsolete.
Ever wander around the store for an hour looking for Pickeling Spice because your significant other can't cook dinner without it and you're working on being more helpful? Yeah, neither have we. But we thought it might be hypothetically easier to just type in into an app than to ruin dinner and shake an already hypothetically strained hypothetical relationship.
New stores join the Skip network every day. So you can use one app to shop at lots of different stores.