Click ‘Sign up here’ to open the registration page
Please complete all of the required details in the registration form
Make sure that you use a secure password: at least 8 characters with 1 uppercase, 1 lowercase and 1 numeric character.
Tick the box to accept the Terms and Conditions.
You can also choose to subscribe to receive updates and tips via email.
Click ‘Create account’ to continue.
Click on the link in the email you have received to activate your account.
The activation link in this email is valid for 30 days after you register, so it’s recommended to verify your email address straight away.
In the activation page, confirm your server location and click ‘Activate’. Once your account is active, you can log in with your email address and password.
Castor has servers available in the Netherlands, the United Kingdom and the United States. You can choose where the data of the studies you create will be stored.
If you are invited by another user to participate in a study, the link in the invitation email should direct to the relevant server location by default