Jinja2 - Jinja2 is a template engine written in Python.
Twinme - Twinme – Private Messenger is a free, secure, instant, and high-definition messaging app that protects your privacy along with giving you full control over each of your relationships and contents.
Dust - A suite of digital safety tools for millennials.
Textra - Textra is a seriously beautiful, feature rich SMS and MMS app.
Jtwig - Jtwig is a configurable and extensible template engine for Java.
Material Messaging - Material Messaging is a beautiful communication app that lets you send and receive SMS and MMS messages using the intuitive interface while giving you complete control over every aspect of your messaging experience.