While you might think of Fitbit as a device you need to buy and wear, you can use the app with just your iPhone or Android device. Your phone has enough sensors to track most of what the Fitbit app needs to help you get in shape and lose weight. If you like the app and want more tracking when you aren't carrying your phone, you can always buy a Fitbit device later.
The Fitbit app can help you be ore active, eat better, lose weight and even help with sleep. The app includes daily goals for steps, calories burned and distance traveled. You can log workouts and even Yoga to track your activities. There is also a food logging portion so that you can keep everything in one specific place.
One of the biggest benefits is if your friends are already on Fitbit, since you can compete with them in a variety of challenges. These will keep you motivated and engaged.
When you need help working out, you can check out the Fitstar section to get help with personalized video workouts tailored to you.