This is about the best you are going to get, and its outdated and not totally correct.

Jamf Pro and Jamf Now Comparison | Jamf

If you are looking at JAMF Now, cost is more important than functionality. Consider something you already have like Microsoft Endpoint Manager (Intune), or Apple Business Essentials. If you are wanting a single solution to grow with you and your needs get JAMF Pro. You will quickly out grow JAMF Now, and changing MDM's is not an easy process so pick right the 1st time or rebuild the environment in a few years. JAMF Now really belongs in the personal space, I'd not consider it for a business environment of any size.