An instance is an isolated copy of your app. Data stored in the database at a particular time is called an instance of a database. Think of an app as a template and an instance as a deployed version of that template. A release may have one or more instances. To create an instance +Create Instance under the Instances tab.
Search the release to add an instance. You may create a custom domain or Hypi will automatically create a domain for you.
After selecting a release, click Save and Continue to create the instance.
A new instance gets created. You may search the Instance on the user interface using the domain name or release name.