Facebook lite is basically a compressed version of Facebook app and is seriously light in terms of space and accessibility, it contains all the features as provided in Facebook so it is a very good substitute for it. The functions provided in it are not less than the original application, it is mere of 4mb so yeah if you have a spce problem so this is a very good app, and with all the functions having as provided in the original application , which makes it a must have app in your mobile phone and the speed is also good so you must have it: )