9apps is a type online store like play store and app store but difference is that play store and app store come preinstalled in phone but 9apps has to be downloaded.
It can be downloaded from its website.
It is a product of alibaba.com which provides many other services like uc browser and online shopping app.you can get all these alibaba services on 9apps.
9apps is a best online store for me, it contains uncountable apps and games like play store and app store but it is better than them because it provide all the apps free whereas play store and app store demands some charges for many of the apps but it provides them free.
It contains all type of apps like games, entertainment, lifestyle, etc.
It gives full information of these apps like how play store gives.
It is very easy to use like all the online store.
And it loads very fastly even faster than play store and app store.
So I think it is best online store.