LoveSales - Find and save products you love, get alerted when they go on sale.
Anywish.app - Collect gift ideas for your loved ones and share your own wishlists. Add items from any online store. The perfect list maker for Christmas and other events!
TrackIf - Alerts you if the price of your favorite products drop
Gift Hero - The best wish list ever
Giftwhale - Giftwhale allows you to create personalised wish lists online.
Lootr.com - Lootr - Your favorite amazon price tracker. Saving you from paying full price.