Wikipedia
Hukkster
Hukkster was a free shopping tool that tracks products online for users and notifies them via email, text message, and/or push notification when those products go on sale or when a coupon code or promotion is applicable. On Friday, Aug. 1, 2014, an email to users announced it was shutting down.
On April 9, 2015 - Hukkster relaunched with a new proposition, offering instant access to savings and foregoing the previous sales tracking technology.
Numerous media outlets and blogs including The Wall Street Journal, The New York Times, Mashable, Women’s Wear Daily, Forbes, GigaOM, VentureBeat, Inc., and CNET and BuzzFeed have covered Hukkster.