One of the, er, benefits that you got for subscribing to Xbox Live Gold on the Xbox One was access to Microsoft’s health and fitness suite, Xbox Fitness, for free. However, the caveat, of course, was that Microsoft was only offering it through to the end of December 2014. Now, they have confirmed that Xbox Fitness will be continued to be offered as an Xbox Live Gold benefit to members in 2015 as well.
“While some of the content available will change in January, Xbox Fitness will continue to offer free and unlimited access to a wide fitness video catalog with your Xbox Live Gold membership, as well as the option to purchase additional full programs with Gold and Silver memberships.”
So as long as you have an Xbox One, a Kinect sensor, and an Xbox Live Gold membership, and a desire to have a fitness and health tracking software, there is a very good, very free alternative available to you.