PriceLocal - Find local stores that match Amazon's price
RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Billiant - Track bills & save money
CoinRebates - Shop at your favorite online stores and earn Bitcoin cashback rewards on your purchases.
Rocket Money - Find your paid subscriptions and cancel with one click
DiscountSignal - DiscountSignal helps you earn cashback, rewards and offers for Restaurant, Bar or Cafe receipts.