Karma (formerly Karmagawa)

Karma (formerly Karmagawa) is a browser extension that automatically tracks products you visit and notifies you of price drops or restocks across any retailer, not just Amazon. It applies the best available coupon at checkout, saving users an average of $12 per purchase, a feature #3 PriceSpy lacks. Its community price intelligence flags when a "sale" price is artificially inflated, providing a check against misleading tactics. With wishlist aggregation from countless sources, Karma offers a 30% faster setup than typical rivals, though its utility depends on browser usage.