Yes, the Open Source edition is free under AGPL license. No time limits, feature limits, or registration keys.

If your organization requires Pro features:

Yes, the AGPL allows commercial use. Some companies require a commercial license for legal compliance, but many use the free version without issue.

License: Commercial
Registration key required? Yes (purchased from Posit)
Cost: Varies (typically $1,495/year per user, with volume discounts)

Adds:

Websites offering "RStudio 9 registration key generators" or "cracked licenses" pose serious risks: