FliChat

Best messenger.Chat with friends,send unlimited photo,videos,files etc at your own comfort.
It consumes little space of your phone.
World has changed,no need to switch off data when you don't want to receive chats as you can log out and in when data is on,
You can set a passcode,no need to lock whole phone due to personal issues,locker is in itself,It can be used in more than one device at per and in desktops,laptops,tablet etc.