Was going to focus this thread to games, but let's not limit ourselves to that and englobe the whole mobile ecosystem. This is an open question open to every mobile user be it Android, iOS, Windows Phone, BlackBerry, Firefox, Sailfish, Tizen, Ubuntu, etc.

Has Facebook taken over your life or is WhatsApp now second nature?
Can't go a day without visiting Instagram or do you rely too much on Google Translate?

What about mobile gaming? Is there anything that's got you addicted?

Firefox, WhatsApp, Youtube, Doom & Durandal.

Edit: Oh, iPhone 6(128GB).

Been using more and more Hangouts, due to the Chrome app and location services.
Internet banking is much more convenient on mobile, since it's so easy to check the status.

For games I used WarLight client a lot, but lately been doing my daily visits to Fallout Shelter.

I honestly don't use my cell as much as most others. I still have an iPhone 5. I was waiting for a smaller iPhone, because i don't like how large they are getting. Looks like i'll most likely, finally be upgrading my 5, this year sometime, with the 5SE coming out. About the only games that i play on it are Scrabble, Fallout Shelter, Super 7, and Splode.

Xperia Z3 only apps i use are snapchat and whatsApp.

Chrome, Youtube, Tumblr and G+.

Haha, just Miitomo. I don't like using apps on my phone.

Miitomo and Whatsapp to meet with friends. Also FB and Twitter apps.

Miitomo, of course.

Messenger, Facebook, Snapchat, Safari, the stock app, Spotify, Netflix, the Chromecast app.

And no, I don't use social media extensively, I'm waaay below average