A domain is essentially an environment in Otito. Every new account comes with 2 environments:
test: This should be considered a staging environment.
live: This should be considered your production environment
Each environment comes with it’s own API key
An application is a unique customer/organisation on Otito. Each app has it’s own unique reference and/or identifier. It also comes with it’s own stand alone metrics.
An application is important in Otito because the customer portal can only show the logs for a single user/app.
This is also called the customer portal or widget. You can find more details on it’s own dedicated page