Hii friends today I am going to wrire a review on facebook. I am using lenovo k5 mobile with 1GB RAM I think that is enough for using for facebook.app .but facebook app ocupied big space in my phone memory.when you install the then app data size automatically increased.there your data stotage space is decreased.not only that it has another problem for reading and sending messege in facebook you can’t read or write any messege to your friend if don’t install messenger app data size near about 179MB in my phoene now you can imagine how much data space occupied in my phone and this facebook messenger app only reading and sending messege some time for video calling but it’s depend on phone.but if you want to do anaything in facebook, both facebook app and another fieles aslo. thank you.