1Sim Connect

OneSimCard Connect allows you to make calls to a OneSimCard phone at no cost. All you need is an internet connection and you can call to a OneSimCard phone for FREE anywhere in the world. Calling to OneSimCard for free requires a simple activation of this feature by OneSimCard Customer you will be calling to. This is done from My SIM Cards menu of OneSimCard.com.

The app also lets you send free SMS text messages to a OneSimCard phone. These SMS text messages are free not just for the sender, but also for the receiver! What's better than free?