Not so long ago I heard (or read) that one can access WhatsApp from a Windows machine. I'm not too sure what exact version of Windows they were talking about (whether 7, 8 or Vista) but I heard that people were successfully accessing WhatsApp and the benefits that it provides from their computer/laptop.
How do I go about this? Do I need airtime in my phone (even though I am doing this from the laptop)? Is it free or do I have to pay for it?
Thanks for the help.