Noom is an app that offers personalized coaching, meal tracking, and other features to help you lose weight sustainably—but it’s not cheap. Here's what to know.

Noom has been called "Weight Watchers for millennials," but Weight Watchers has made significant updates to its program. Which one is best for you?

Sarah Moss lost weight in college but regained it later, until she joined WW, used the iTrackBites app and did Les Mills Bodypump classes to lose 80 lbs.

Abigail Miller struggled with her weight until she started Weight Watchers (WW) and tracked food , and started taking indoor cycling classes. She lost 80 lbs.