If you wish to take a free GRE practice test on CrunchPrep, you will need to sign up for a free trial account.
Once you sign up, and login to your account, go to the 'Tests' section from the dashboard, and you can start your free test.
During the free trial, you can take just one full length test. If you wish to take more tests, you can sign up for one of our course plans here: crunchprep.com/plans.