Does NAMO work with the free version of MAMP? MAMP GmbH June 05, 2019 10:20 Updated Yes, NAMO works with the free version of MAMP. Related articles When I enter my MAMP PRO url in a browser on a different device my webpage does not show up. Where can I find more information about troubleshooting and how-tos for NAMO? I want to revert back to MAMP PRO 4.5. How do I recover my license key / serial number?