When the MAMP PRO application is launched for the first time its helper tools will be installed. You will be prompted to enter your admin password.
Click on the Servers button in the title bar to launch Apache and MySQL, they are your default GroupStart web and database servers. The launch status of the server is displayed in the Servers & Services section. A check mark next to the server/service indicates that this server/service will start/stop when the Servers button is pressed. The Apache web server (default web server) uses port 8888 by default. This port must be specified when calling the local web page in the browser, e.g.: http://localhost:8888