Voice over Internet Protocol (VoIP) has been revolutionizing global communications for a while and nowadays it is considered the coolest and smartest way to talk on the phone. As a result, there has been an explosion of VoIP apps, programs and hardware that offer you amazing features. So whether you are a business owner, an online video gamer, or just an ordinary user, you know that VoIP provides you with an easy, low-cost way to communicate with people around the world. But it’s hard to choose the right application for you with so many options available. So to make your life easier, here are the 10 most popular VoIP apps available: Skype Skype was the first VoIP app for end-user, and is still, by far, one of the most popular VoIP apps available, with more than 300 million subscribers. Skype to Skype audio and video calls, group calls, instant messaging…