This is exactly the case for users from Iran these days! Every connection mode except WSTUNNEL is actively blocked, heavily slowed down, or disrupted in other ways. Even the Stealth Mode is affected most of the time. It seems that WSTUNNEL is the only method that can (at least for now) make our VPN traffic effectively undetected (I guess they are using sophisticated DPI techniques!) and provide a fast and reliable connection. Unfortunately, this mode is not yet available in the Android app, so even as a premium user, it's nearly impossible to use Winscribe on Android in Iran. Hence, as my fellow Iranian friend has just brought up, I sincerely ask the Windscribe Team to add the WSTUNNEL MODE to the Android app!