Communicate the way you want with Riot – a universal secure chat app entirely under your control.
Riot itself, the application, is trade-free. Anyone can install it on their own servers and edit it as they want. Do not confuse it with one of its implementations, Riot.im, which is mainly trade-free but they also push some paid features (like faster messenger and such) through their Riot instance. Thus, Riot (the application itself), is indeed trade-free.