Kiloo and SYBO's 2012 endless runner Subway Surfers has taken in more than $80 million in revenue on iOS. Sensor Tower reports that the title reached the milestone through in-app purchases alone.

Ensure that your device has a stable internet connection. Connect to a reliable Wi-Fi network or cellular data network with a strong signal. Open a web browser on your device to verify that you can ...

In our regular Mobile Masterworks feature we take an in-depth look at the story behind the biggest mobile franchises and apps around. What led to their creation? What made them such a success? And how ...