I'm a big fan of the Withings line of personal health devices -- over the years, I've purchased one of their Wi-Fi Body Scales and a Blood Pressure Monitor. The devices are great, and it's nice (and sometimes frustrating) to see how your health is doing over time. But the stats that were provided did little to motivate me to really exercise more, eat less, and even care about taking my blood pressure daily. The completely new Withings Health Companion app (free) is designed to not only monitor your health, but motivate you to do something about it.
Unlike the previous WiScale app, which just tracked weight and BP and is the tool with which you take your blood pressure, the Withings Health Companion app lets you set goals and reminders. Upon launching the app, you see a "butterfly" with four wings -- one cyan, one orange, one magenta, and one green. Each wing is associated with a different health factor -- sleep, activity, heart, and weight. The idea is that you should try to eventually "fill" each wing with color, indicating that you're managing sleep, activity, your heart health, and your weight.