My company allows me to track my daily steps with various step counters, including the Fitbit. I get $5 a day for every day I track 3000 steps, which is supposed to be 30 minutes of activity. My wife and I can both earn a maximum of $400 a year ($800 total) to be used towards our health care. We use the money for our insurance deductible, new glasses, medications, etc.
I use Sync Solver: Health to Fitbit to track my 3000 Watch steps a day and my wife uses a new Fitbit Flex 2. I do not care about the challenges or any of the social aspects, so Sync Solver works for me. Most days I have to manually sync my steps to Fitbit at the end of the day, but it is not too difficult.
I wish Apple had their own sharing site, so I could point my companies insurance to the Apple site instead of Fitbit. For now, I will keep using Sync Solver until Apple starts to take their health tracking more seriously.
TxWatch