Actually AppMon has announced its end of support for end of March 2021. Therefore I would recommend starting a free trial on the new Dynatrace platform.
May I ask you with which URL you registered for the free trial for AppMon? It should have redirected you to the new one.
Thanks for your response. I installled Dynatrace 7.2 and while launching it ask me to retrieve license online or from file. I dont have file so i tried to get online with my login credentials. But i see no license like the screen shot. Not sure how do i proceed? Your suggestion will help.
Are you a customer with a current license for AppMon still? If so then we can reach out to the licensing team, but if you're installing fresh and not a current customer, or are looking to get a demo/small environment stood up, that is no longer going to be possible. I'd encourage you to sign up for a free demo of Dynatrace here then and click "Start Free Trial" after inputting your username.
Dynatrace Demo: https://www.dynatrace.com/trial/