Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
Showping - Showping is the power of word of mouth in your pocket.
Price Tracker by Relbis Labs - Price Tracker is a command-line tool for monitoring the prices of productsFeaturesTracking prices and availability of products.Tracking Amazon Kindle books.Displaying products information in a terminal.Exporting data into Excel and YAML files.
Swappy - The app to swap Items with people around you
Pricy - Amazon price watch
Sellfy - Sellfy is an easy to use but powerful e-commerce platform where you can sell digital, print on demand or subscription products. Use a Sellfy storefront to create a beautiful online store or embed a Sellfy shopping cart to your own website.