When Skype was acquired by Microsoft as an alternative of Windows Live Messenger and will have more users around the world. Viber was basically a smartpone app and is only now being given on desktops with its beta platform for video calling. There is room for improvement from Viber, particularly people are searching for alternatives for Skype. How does Viber compete with Skype?
Registration and pricing
Viber
Users have to register their phone numbers to use Viber, they will receive a code so that they could activate the app. If they don't have a mobile number, then they cannot use Viber. The contacts will be imported to the app on mobile. Viber is free for those who are willing to register their mobile number.
Skype
Skype is used to call mobiles and landlines if users have credit, it is also free for making Skype audio and video calls. The cost of landlines and mobile calls depends on location, but it is basically cheaper than long distance calls from carrier.
Winner: Skype
The reality that Skype is free to register makes it a better choice. Needed phone registration is a deal-breaker with Viber.
Video Calling
Viber
The video calling feature still used beta and hasn't been developed. It is only possible using Mac or PC, not smartphones.
Skype
Skype is incorporated video calling across all its platforms. It can make video calls from smartphones and PCs and from PC to Smartphone. With a wider install base, it has better functionality and more users with its video calls. Skype permits video calling with all its desktop and apps versions. Viber is still creating its video calling, but Skype has the larger installation base.
Winner: Skype
Skype still rules
Viber may be trending and penetrating Skype's territory, but it doesn't have the tools to go against it. With Skype having Microsoft to support them, its dominance will pursue. Until Viber can launch something different or new, users have more reason to stay with Skype.
If Viber can offer video calling onto smartphones, let registration without mobile phone numbers, or dramatically let something more advantage than Skype, then maybe it has an opportunity. However, right now, users have all the reasons to stay with Skype.