Setting up a Realm Cloud Instance

Getting started with realm is quite easy.

Head to https://cloud.realm.io/login
Create an account
Every user is provided a free instance on Realm cloud. Hit the Create New Instance button.

Provide a unique name to your instance

You will now be redirected to the dashboard. In this case https://licensed-fresh-chair.us1.cloud.realm.io is the url to my realm cloud instance. Click on the Open in Studio button to open the instance on Realm Studio (You can download Realm Studio from here)

Creating an admin user on your realm server

Open up your realm server on Realm Studio (instructions above)
Click on the Users tab and then the Create New User button on bottom right corner.

Choose a username and password for your user

You can now change the role of this user to Administrator