Short for Linux, Apache, PostGreSQL, Perl LAPP is an open source Web development platform that is a variation to the LAMP stack. LAPP uses Linux as the operating system, Apache as the Web server, PostGreSQL as the RDBMS, and PHP as the object-oriented scripting language. Perl or Pythonmay be substituted for PHP.
See LAMP.
Learn more about Open Source in Webopedia’s “Did You Know…?” section.