United States (United States) 
So here are some of the ones I use for Hindi: HINDI
Gaana
A really great app that lets you stream music in a lot of different Indian languages and English. They have a big collection of Hindi songs.
Radio Chai
This is a radio from New Jersey (not sure if this is available in other countries) but it plays desi programming mostly in Hindi but also in some other regional languages. The app is free
TenguGo Hindi Alphabet
An app for the Hindi Alphabet.
NBT-Navbharat Times (Hindi edition)
An app for a Hindi news paper
Samchar-Hindi News Reader
An app with Hindi news stories
Zee News Hindi
Hindi news with live updates
I will post more soon. Make sure on the news apps you specify Hindi, since many come in regional languages as well.
but this is bound to be a useful resource to most people who want to learn Hindi or Urdu and like using learning apps.