MAMP is a solution stack composed of free and open-source and proprietary commercial software used together to run dynamic web sites on Apple computers. Developed by appsolute GmbH
License: Freemium
WTServer is a versatile local server environment that supports multiple platforms and configurations, making it suitable for various development needs. In contrast, MAMP is specifically optimized for macOS users, providing a streamlined experience for WordPress development but with less flexibility across different operating systems.