I tried the Apple store's most popular fitness cryptocurrency app -- and discovered a potential flaw

Erin Brodwin / Business Insider I'm no stranger to fitness apps, having tried everything froman app that promises the benefits of a trip to the gym in seven minutes to a tool that lets you track and share your runs with other users. But when I first heard about Sweatcoin, an app that pays you in cryptocurrency to reach your fitness goals, I was intrigued. Naturally, I had to give it a shot. Here's how it went. The first thing I learned about Sweatcoin after installing it on my iPhone is that it ...