To get the free version of ProjectCards, simply download the trial and use it fully unlocked for 30 days.
After the trial period, ProjectCards will switch automatically to ProjectCards Free!
The free version of ProjectCards can be used by a team of two users and is limited to servers hosting 4 projects with a maximum of 200 cards per project.
It is also not possible to edit definition of the custom fields.
Version 2.7.0Release notes