Bounty is another way to earn.




 It provides you with platforms where the person can offer the skills they have. These skilled and competent persons are hired by the exchanges or the app developers. They can even remove errors from the apps and check for scams in the blockchain. These services will in return let them earn free bitcoins. These kinds of projects can also be promoted on social media platforms like Facebook, Twitter, and many others. These promotions would benefit in earning plenty of free coins.