I have been using skype for last 5 years and I must say that this is the best chat and video calling app in the world.if you want to do video calling or audio calling, you have to very good internet means 1mbps.the video is hd and can see other person clearly.chat is very good also and in 2g network, it runs very well.audio chat is also work in 2g network.it will be better if you use skype as business purpose.you can also recharge your skype account and call any one in the world in mobile number.skype dont hang if you use it long time and also consume low space.so if you want to communicate to world, then skype will be very good option for you.you have to go to skype website and then install it in your computer.you have to reregister first in microsoft account.
