The earnings are based on number of steps you walk compared to number of steps everyone else walks. So In jan if people walk more steps than dec then your earnings will be less for same number of steps .
In Jan we already seeing about 35 million steps walked by all, much more than in Dec when app was launched
For this month:
Converted Steps: 86,000
Bitcoin Earned: 0.004 BTC
For last month:
Converted Steps: 100,000
Bitcoin Earned: 0.028 BTC
The BTC per step have been cut down a lot as you can see.
Question for those using this application,I see one payment is done, so I wonder how much you have walked and how much you earn?