It works on MyFitnessPal/iPhone as of 11/12/21 for the Wyze scale. Not sure about the band as I don’t own one. First you have to go to your iPhone health app, click on profile on right top—> privacy—>app—>MyFitnessPal—> turn on all the toggle. Now you will go to your Wyze app —>settings—> sync data to third party app —>Apple health and turn on this function. Weight yourself on Wyze scale and it will update the MyFitnessPal.