Meet the Perfect Blend PRO: an app-enabled scale that lets you track how many calories there are in your smoothies. Its app shows you how to make delicious smoothies. Just tell Perfect Blend what you have, and it can tell you what to make.
The scale works with the app to guide you through each recipe. You get to weigh each ingredient and calculate calories precisely. The device is compatible with iOS and Android devices. Costs under $100 at this time.