Jasons Soup n Juice Diet is an iPhone app developed by Juice Master Ltd. This app offers a 7-day diet plan that includes soups, juices, and smoothies, along with two power salads for the weekend. The diet plan is designed to help people lose weight without compromising on nutrition. The app is based on Jason Vale's book, Juice Yourself Slim, and features everything you need to breeze through the plan.

The app includes delicious juice and smoothie recipes, along with videos to make it easier to follow. The app also provides satiating salad and satisfying soup recipes, a shopping list function, and a coaching SOS video from Jason. The app also has a reminder alert feature that helps you stay on track. The app provides audio from Jason about "Life After the Plan," which helps users maintain their weight loss.

Jason Vale, also known as the 'Juice Master,' has sold over 6 million books and over 1 million apps. He has been on a mission to Juice the World for over 20 years. The app is a perfect plan for those who want to slim down but need a little more than pure juice. It is simple to follow, and the recipes, soups, and salads are delicious and nutritious.