NutriBullet is excited to introduce the NutriBullet LEAN app! To access the app, you must enter the NutriBullet LEAN System product serial number. Free to all NutriBullet LEAN owners, this amazing program lets you plan your MacroBlasts and Portion Perfect meals, receive custom grocery lists based on your selections, track your activity levels, record your weight loss progress, and more from your app.