Messenger is usefull for every facebook user because you can simply useit and can chat with your friend one more thing that you can also do videou call and simple call now u can put story on messemger as youcan use it differently facebook and messenger bad thing is that you have instal ah app of messenger different it is not attach with facebook app so it hold many space of your phone one moregood feature is that use can use diffwerwentccount in messenger as in one messenger app