AliPrice - AliExpress Price Tracker app lets you track the price history of any item from many online retailers like AliExpress, Daraz, and Amazon, etc.

OsClass - Open-source PHP classifieds script to create classifieds website within 3 minutes.

idealo - Idealo is a free to use mobile application that helps you to find products, compare price and make an informed decision.

Flynax - Flynax is the leading classified script developer.

Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.

Blue Classy - Blueclassy is a premium and most reliable classifieds ads script that help webmasters to build their own classified website in minutes.