Utilize Rakuten to Shop and Earn. Rakuten, formerly known as Ebates, is a cashback app that lets users shop at over 2,500 stores & earn money while doing so. Cusrummy cash apktomers can receive cashback on their purchases, which is distributed every three months by check or via PayPal. Although money-making apps provide an easy way to make extra money, there are a few tactics you can employ to increase your profits. Using multiple apps at once is one of the best ways to boost your earnings.