Fitbit`s servers are down right now but a fix is on the way
(Android Central)

Your Fitbit tracker will still work, so you can go on that run. What you need to know Users have been reporting that the Fitbit app is not syncing their metrics. Fitbit has confirmed that the app is experiencing technical issues, but the problem has been identified and a fix is on the way. The app has reportedly been down since early morning March 3rd. Fitbit users, you`re not alone. If you`ve noticed that the app has been acting funny lately then it`s not just you ― Fitbit`s services are down right now. Users have been reporting problems since early morning on March 3rd, with difficulties signing in or syncing metrics to Fitbits servers. This comes just a couple of days after the Fitbit web dashboard was down, with users complaining about sign-in problems then, too. Fitbit is apparently aware of the situation and has been addressing disgruntled customers on Twitter, stating that a fix is on the way. We have identified a technical issue interrupting Fitbit services, and are ...