Shoptagr

Shoptagr is a sophisticated shopping tool which allows online shoppers to price-track items across their favorite retailers right down to their preferred size and color and get notified via email, text message and/or push notification once the price is right.

Shoptagr works through a browser bookmarklet/extension, which can be clicked while browsing the inventory of thousands of online retailers including Asos, Net-A-Porter, Topshop and Amazon. It's simple to keep track of all wanted items in one convenient place.