Earn up to 40 percent cash back every time you shop online at one of 1,800 participating retailers. Plus, you can earn up to $50 for referring two friends. Simply download the app on your iOS or Android device. Payments are made every three months by paper check or PayPal, or you can have your money sent to a charity, organization or family member. 

Read full content : 15 Best Apps To Make Money Online ...

There's a good chance you often find yourself killing time by idling browsing through your smartphone. Playing games and catching up on social media sites is great, but these activities alone won't pad your wallet. Make the most of your spare time by downloading an app that can earn you extra money.

It might seem like there's a catch involved, but there isn't. There are many legitimate, free apps that allow you to make money by completing surveys, watching videos, secret shopping, sharing photos and more. Most of these apps offer modest pay and allow you the flexibility to earn money when your schedule permits.

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