PepperGoods.com - PepperGoods aggregates wholesale websites to provide you with best products choosen from millions.
AliPrice - AliExpress Price Tracker app lets you track the price history of any item from many online retailers like AliExpress, Daraz, and Amazon, etc.
Bingle Goggles - Bingle goggles combines the power of Bing, Google, Yahoo & Facebook services into one app!
Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
ShopSavvy - Shopsavvy title.
idealo - Idealo is a free to use mobile application that helps you to find products, compare price and make an informed decision.