Please note this App is a monthly subscription and after installing it you need to subscribe to use it. There is a free trial period so you can cancel the subscription and will not be charged if you decide to not use the App. Size Matters is a companion App to the Size Matters lifestyle book. By tracking and contrasting your weight and calorie intake over time you can weight what you want to weigh and eat what you want to eat. Size Matters guides you using simple, easy to understand, principles to ensure you succeed. The Size Matters book is embedded in the App under the Options Menu > eBook and will soon be available as a Kindle eBook. It is free with a Size Matters subscription.