Skuuudle - Discover, match and monitor your eCommerce competitors.
CONV. - Convert YouTube video to MP3, GIF or MP4
Price2Spy - Price2Spy is a price monitoring, pricing analytics, and repricing tool, meant to help eCommerce professionals keep an eye on their competitors or retailers.
Downie - Video download for OS X. Downie supports at this moment over 1,000 different sites.
Prisync - Prisync is a competitor price tracking and monitoring software for all sizes of e-commerce companies worldwide.
Yout - YouTube to Mp3 Converter