SSLSocks app
SSLSocks is an SSL/TLS tunnel using stunnel for Android. It was originally intended to be a socks5 VPN through TLS, but the author never finished implementing the VPN service.
For detailed instructions on how to set it up and use it, please see the blog article How to run stunnel on your android device. Hint: As this app is mostly „just a GUI“, you will need the stunnel android binary, which can be downloaded from here.