30 days fitness challenge is a very good application for all the smartphone. If you want to keep your fitness fit and you have no time to go Gym then is application is best for those type of people. You can take a 30 day challenge from this app then you can take daily challenge of 30 min which is best for you. The layout and the design is also simple amd best. The concept of this application is too good. This application will help you to keep your body fit. This is a new and best application for all Android phones. In this application there are many daily exercises which is Good and uptodate. The features is also good of this application. I love this application and this is very useful for all.