Concept: - Concept is that of this app to download all type of apps and games, books, movies also. You can purchase apps and games, books, movies also.
Layout and design: - Layout and design of this app is very cool and nice.
Features: - Features are very good in this. This app alway show in notifcation bar if any update is available. If automatic updat is on it automatically update app when update is available. It shows all the apps that installed in cell. It shows history of all app that have used in cell before.
Usefullness: - This is very usefull store of apps. All tha apps you need get from google play store. Books and movies are also available on this app