Facebook ahh everybody is well known about this disease. But for noobs, Facebook is an application which supports Android, IOS, Windows and much more platforms. Facebook is available easily at any store like AppStore, PlayStore etc. There is a lighter version of this facebook called Facebook Lite is there too. But I have used this Facebook Lite personally its good if we wants to consume our less MBs or Data but apart from that this application seriously takes too long to load messages, images and sometimes says to reload again and again then the page gets open and sometimes not. So these things make me rid of this Facebook Lite app and switch to Facebook and Messenger too.
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