If you do a lot of online shopping from Amazon, Walmart, etc. you need this app. They do all the work and save you money. Ive got a bunch of refunds and have been using the all for a year. You dont need to do anything except watch the refunds come in. So shop away and know they got your back in case the price drops.
O_diz about Paribus: Money Back Shopping, v2.2.0