Can I purchase a Marketplace app at a User Tier other than that of the parent product?


All Marketplace apps must match (or exceed) the parent product in terms of User Tier. For example, if you license Jira Software at 100-Users, and Confluence at 50-Users, all Jira apps must be licensed at the 100-User Tier, and all Confluence apps must be licensed at the 50-User Tier.

Source: Atlassian Purchasing & Licensing FAQ