I had bought the scales because of the interface and subsequent evaluations of the app, however, realized that the app is not good so much. Although it is reliable data on, but so far, not all family members to connect with the balance to manage your own accounts. Is probably designed more for only one user. The ease of use of the app is also getting used to - at least if one is accustomed to other apps than iOS users, Finally, the balance has begun to spin, and every day has turned uncontrollably and readings recorded. Have not figured out why. Interestingly, the balance displays in comparison to other digital scales at significantly different weights. It remains to consider, agree what values now.