The IoChat Public server hosted by SenLab has been made available for free public use. Feel free to create an account and communicate with your contacts through it.
Compared to paid IoChat versions, full functionality is retained but a limit of 10 friends is placed on all registered users. Since this particular IoChat server is not self-hosted you also cannot take advantage of the enhanced privacy and security offered by the paid versions.
Don't worry, your data is perfectly safe with us anyway!