The telecommunication technology has reached incredible heights in the past few years. Now an ordinary cell phone can be used for so much more than just making calls and sending text messages with it. Now, smartphones can access internet, take photos, etc. In fact with the right apps installed on your smartphone you can even make calls on considerably cheaper rates than those offered by the mobile operator. However, there is high competition between developers of different mobile VoIP apps, which means that there are many apps that are not as popular as others.

When it comes to mobile VoIP apps most people think of Skype, Viber and Line 2. These are some of the most popular VoIP apps that smartphone users can install on their cell phones. But as you probably already guessed there are plenty of other similar apps that can also be used by the user to make the cheapest calls to domestic and international, mobile and landline numbers.

One fine example for such app is Vyke. In fact this app is a lot different than the rest of the mobile communication apps. You know how Skype can be used to make calls between user using this app and the calls are free. With Vyke you cannot make free calls to other users using it, because the main focus of Vyke is to make cheap calls to international mobile and landline phones. For that reason Vyke offers one of the lowest international calling rates.

iCall is another unpopular mobile VoIP app that offers similar services to Skype and Line 2. Better yet with this app not only, you can make some of the cheapest calls, but the calls to landline numbers in USA and Canada are absolutely free. As for the other parts of the world, the calling rates are extremely low.

Another app that falls behind Skype on popularity is WoWTalk. This app is available for Android and iOS mobile operating systems. With this app you can make free calls to any of your friends that also have installed the same app on their phone. And if your friends are not using WoWTalk, you can always invite them to join you using the app, this way you are sure to pay fewer money on calls with your friends and relative.

With the popularity that some mobile VoIP apps get many other more unpopular one remain unknown and unused.