Carb Manager is the #1 diet and fitness app for people on low carb and Keto diets, available on iOS, Android, and the web. Altogether, we've helped over 5 million people lose weight and achieve their health goals. Carb Manager is a top-15 health and fitness app in the iOS App Store, with a 4.8/5 rating with over 200,000 reviews. We even have our own hashtag on Instagram, with thousands of enthusiastic posts.