RevSSL is a simple SSL Tunnel application that can be used with Stunnel or with the RevSSL Direct server, which is available for free within the application. It is a utility and tool application available for Android users and is licensed for free.

This application has various features such as the ability to import and export configurations, export settings and lock them, a free SSL Tunnel, the ability to change SNI and SSL port, and an anti-sniffer feature to avoid potential MIT attacks.

To use RevSSL, you must have access to an SSL server and internet access. However, users have reported issues with the APK crashing or other bugs. The developer has provided a support group for users experiencing issues with the application.

Overall, RevSSL is a useful tool for those who require a simple SSL Tunnel application for their Android device.