Best of Boston

The crust off your kids’ sandwiches, a handful of chocolate chips after dinner: When you’re trying to reach a healthy weight, it can be hard to keep track of all of the bites that make up a day. That’s why 40 million users have downloaded this Boston-born calorie- and exercise-tracking app since it debuted in 2008. But the service isn’t just about shedding (or maintaining) pounds; with virtual support groups and a focus on nutrition, it’s about lifestyle changes that set the stage for lasting wellness. Count us in.