MAMP Pro stands for: Mac, Apache, MySQL and PHP. With just a few mouse-clicks, you can install Apache, PHP and MySQL for OS X!
MAMP installs a local server environment in a matter of seconds on your OS X computer, be it PowerBook or iMac. Like similar packages from the Windows- and Linux-world, MAMP comes free of charge.
MAMP is installed in the typical Mac fashion: very easily. MAMP will not compromise any existing Apache installation already running with your OS X. You can install Apache, PHP and MySQL without starting a script or having to change any configuration files!