A free app that rewards you for being active by paying you in its own currency has overtaken WhatsApp as the most popular app on the market.

Founded in 2016, Sweatcoin has seen a dramatic increase in popularity recently with more than 2 million active weekly users. The app tracks your movement and currently rewards every 1,000 steps with 0.95 “sweatcoins.” The virtual coins are then exchangeable for a variety of products at over 300 stores in Britain, including Boohoo.com, Graze and Hellofresh.

It has already received more than US$5.7 million in backing from a number of investors and the company plans to use its financial backing to reach out to Europe and Asia in the near future.

Anton Derlyatka, co-founder of Sweatcoin, said: “We have a very bold plan to take the concept of fitness into the future which even includes the ability to pay taxes with ‘sweatcoin’.”

Oleg Foment, co-founder of Sweatcoin, also said: “As we grow and execute upon our vision, we plan to develop an open-source* blockchain* technology that will allow ‘sweatcoin’ to be traded like any other cryptocurrency.”(SD-Agencies)