I can not find the iObeya application in the Microsoft Teams catalog of applications.

As a Microsoft Teams administrator, you can configure the list of applications available for your Microsoft Teams users.

If iObeya does not appear in the list of applications, please ask your Microsoft Teams administrator to add the iObeya application to the whitelist of Microsoft Teams applications.

You can find the documentation concerning this topic here: https://docs.microsoft.com/en-us/microsoftteams/teams-app-permission-policies