The iHealth Digital Scale works with the iHealth Digital Scale app, free at the App Store. Easily record daily weight measurements on your mobile device with wireless Bluetooth connection, even when you're on the go. Simple and personalized graph tools help manage and track your progress over time, even set target goals using the Milestone feature. The iHealth Digital Scale app makes it easy to organize your personal data and securely share it by email with healthcare providers. And the iHealth Digital Scale supports multiple users on multiple mobile devices so family members can share.