Runtastic offers apps for track, measure, and improve your fitness. In addition to the apps, you can also monitor your progress on Runtastic.com. You will get fitness reports, motivation and can share all of them in Facebook or Twitter. Get motivated with Runtastic! You need to subscribe to Runtastic Gold to be able to sync your data with your Withings scale.

• After logging in, click on your account on the top right of the page and then click on the "Settings" link. After this click on the "External Services" link on the left side of the page.

• Click on "Connect to Withings" Button.

• Enter your Withings account email address and password.
  If you have more than one user on that device, select the user that represents yourself. Click save, and your account will automatically begin updating.