WhatsApp vs. Viber: Which App Has Better Calling Feature & Overall Service?

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A comparison between the features of Viber and WhatsApp — two of the most popular mobile messaging apps.

Instant messaging apps are a dime a dozen these days. There are so many to choose from, each of them offering its own bells and whistles that make the experience unique and exciting. Among the most widely used messaging clients today are WhatsApp and Viber. While these apps share some of the same features, they are both fundamentally different from each other.

Today, we?re going to share what we think about what these apps has to offer, especially with their respective voice calling feature. Although WhatsApp voice calls is not yet rolled out officially (it?s being tested via an invite system), it?s been a hit among those who are already capable of running it. While there?s still much to learn about WhatsApp?s calling feature, we?re able to access it previously so we?ve come up with this short piece discussing its features and functionlaity in comparison with Viber.

User Interface

Viber and WhatsApp vary greatly in this area. The former offers a more sophisticated and feature-packed interface while the latter focuses on a straightforward approach and simplicity. Users who own high-end handsets may want to have more options but for those who value a no-frills experience, WhatsApp is the clear winner.

Call Quality

Because of the number of years that Viber has been offering VoIP calls, it easily wins this area. Depending on the connection, the app is capable of delivering HD voice calls to its users. On one hand, we?ve tested WhatsApp?s calling feature and found out that its quality differs on various bandwidths. It?s acceptable on 2G networks, with some lags and echoes here and there, but it significantly improves when a 3G or Wi-Fi connection is used.

It may be unfair to judge these two apps in this category since WhatsApp still have its VoIP calls in beta phase. Of course, it will improve in time and perhaps stay to true to its lightweight style, but for now the crown belongs to Viber.

Cost & accessibility

Both applications are free to use at given span of time or condition. Viber is free if a user wants to call or message another Viber user but charges a certain amount (rates vary per country) if it?s used to call landlines and mobile phones directly. Meanwhile, WhatsApp is free for the first year of usage and asks a $0.99 subscription fee every year thereafter.

These two mobile messaging service offer their own desktop clients. Viber allows its users to use it on a Windows PC by installing a desktop program. WhatsApp offers a web client that utilizes Internet browser, no need to install anything. So in these parts of the arena, the game is pretty much a draw.


Fans of both Viber and WhatsApp may realize that on paper, this is certainly a close fight. However, it seems that the latter is the winner in the real world. The Facebook-own mobile messenger is already being used over 700 million users worldwide while Viber has a relatively meager 236 million monthly active users.

Once WhatsApp?s calling feature is finally launched officially, will it be a threat to Viber?s long-running VoIP calls service? There?s no way to answer that for now. But given the former?s popularity, there?s no doubt that it can easily convince its throng of patrons to use it over other messaging applications.


Photo Credit: ?Google Play, J. Endriga

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