Acadly is free for professors and students.
We earn by selling site-wide subscriptions to groups of users - academic departments, colleges or universities. However, no one needs to purchase anything from us for their professors and students to be able to use Acadly. As a professor, one can simply sign up for Acadly and start using it for free.
The paid version of Acadly for universities comes with additional features for the IT and university administration. Please get in touch with us at firstname.lastname@example.org if you're interested in learning more about the paid version of Acadly.