Hi freinds iam harikrishna .I using now face book .wtsup. all best apps on this my freind said please download telegram .when I installed this app there is no use to this app. This app not supporting to me to enjoy chats & calls vedeo call also slow. 1 st I think this app is very use to me but now I suffering this app. My data also waste this downloading app . So all my best freinds please think if u are downloading any app that app must be support to us for enjoy. If that app suffer to us that app is useless