I use google play store to download different application and books also I run my business using this store. I develop application in android and I can easily upload on play store for world wide market of my application.
There have to small registration fee(Rs.1500) for play store developer account after that you can share lots of application by using your account. Everyone can create there application and share on google there have no restriction. Because of this I’m able to run my business so I like google play store and I recommended to everyone.