Yes, you can invite your team members on the free trial.
The trial version of Kenesto is the same as the fully paid version. Feel free to add users, share, and work with files, projects as you see fit.
Simply log into the admin area of app.kenesto.com/kenesto/ and add the users to your account.
Click on the Add User button and enter the user's details. Please make sure the email address used is correct!