How it would be if you have a very smart and easy way to keep your health fit? Of course good! I was looking for a smart fitness app for my iphone, which can automatically track and give me a summary of my daily health fitness activities! Then I came to know about this 'slife' app. I downloaded it from the App store and started to being benefited by this app. It's really amazing for its accuracy of different measurement and task. You can download it from iphone app store by searching "slife"