WhatsApp for iOS is free for a limited time

You've surely heard about WhatsApp, haven't you? It is a popular messaging platform that works across different mobile operating systems, meaning that Android users can send free messages to their iPhone-rocking friends and vice versa. And the app is pretty successful too as it has attracted over 20 million users to date.
At the same time, the pricing scheme of WhatsApp for Android remains unchanged, with the app itself being free to download, but a $0.99 yearly fee being applied after 12 months. You can go download WhatsApp on your iPhone or Android device by visiting the Apple App Store or Google Play respectively.
via: The Verge