Opera mobile app comes with a lot of useful features, and one of them is data saving mode. Make sure that the VPN is set up correctly in Opera app for Android. Not everyone needs or uses it, and certainly not all the time. The VPN feature is off by default in Opera mobile app. We will explore this bit in more detail later in the guide. But that doesn't mean you can use just any VPN. By the time you finish reading this guide, the issue should be resolved.Ī VPN is a much-needed feature, especially in today's world, where everyone is busy mining and selling data for pennies. The problem is that Opera's VPN is not working for some users on their Android phones. It now supports Android (as well as iOS) and comes with advanced features like free VPN (Virtual Private Network). Opera has come a long way from its Symbian days.