Excuse me? Push notification from my scale:pic.twitter.com/vhDbLBlL3x
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
@starsandrobots I think via iOS 8 motion activity and health APIs. (So it's really the app aggregating data from my scale and phone.)
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.