Cubber - Best cashback rewards offer online shopping website & App India. Shop through Cubber on branded websites (Flipkart, Amazon, Ebay, Sanpdeal, etc.. ) and get cashback rewards. Cubber is an all-in-one app. It allows you to do much more than you can with any other website. The best part is, you can earn on the side while transacting with Cubber. Cubber offers you an unparalleled experience in online payments and shopping. There is no other website or app that gives you cashbacks on almost every transaction that you do through Cubber, irrespective of the offer or discount offered by the Ecommerce websites.