SAN FRANCISCO (KGO) --You've likely seen the price match guarantees of many retailers, but when's the last time you've taken advantage of one?
Now, there's a new app called Paribus that could help you earn a little money while shopping.
Right now, Paribus only works for online purchases, but has plan to expand. Users are charged a 25 percent fee for any money they are refunded.
Watch the video player above to find out more about how this app works.