Once your fully functional trial expires you will be able to keep using Telerik Platform but with limited features. Click here to view
what features are included in the post-trial free edition.
Please examine the allowed number of projects the post-trial subscription supports since you will only be able to keep working on just a couple of projects for every service. This is why, you might want to manually save (export) the projects which you won't work on after the subscription expires and make sure you only have the allowed number of projects in your account to be able to take advantage of the limited functionality available within the post-trial free edition.
I would recommend that you examine the general Terms of Service for Telerik Platform
for more information.