the Fitbit mobile app
Virtual Partner extended edition for Ionic and Versa.
Specify a distance and duration and compete with your VirtualPartner on your Ionic or Versa.
Supports miles and kilometer
Heartrate control included
VirtualPartner X has the same functions and features like the Virtual Partner app. It additionally records the run in your activity log including the gps data.
Because VirtualPartner X uses SDK 3 which needs Fitbit OS-Version 3.0 Virtual Partner is also still available.
You can find detailed instructions at: http://www.fitbit-dev.com/index_en.html
If you want to support my work just click: https://www.paypal.me/fitbitdev