But Gary Foster, WW's chief science officer, pushes back on claims that the app is for weight loss, despite being part of a weight loss and wellness company.
"This isn't a weight loss app," Foster told HuffPost. "This is an app that teaches in a game-ified, fun, engaging way what are the basics of a healthy eating pattern."
"I think there could be some misperception that somehow we’re saying, 'All kids should lose weight. You're not OK as you are,'" he said. "What we’re saying to kids who are trying to achieve a healthier weight — kids and families — is that this is a reasonable, sensible way to do it."
Although Foster said the app is not necessarily for weight loss, a visit to the Kurbo website shows "success stories" from a 10-year-old boy who lost 42 pounds and a 15-year-old girl who lost 40 pounds.
Still, the app aims to teach children and teens how to choose foods. Using the traffic light system, foods are coded green, yellow and red to guide teens and kids on portion sizes and how to moderate food choices. Desserts and soda are red foods; lean protein, dairy and whole grains are yellow foods; and fruits and veggies are green foods.
Teens also have the option to work with a coach in a paid version of the app.