third-party

Third-party software is the extensions/plugins that were not provided in the template package.

In the computer world, a third party may refer to either a hardware manufacturer or a software developer. It is a label given to companies that produce hardware or software for another company's product.

Third party software refers to programs that are developed by companies other than the company that developed the computer's operating system. Therefore, any Macintosh applications that are not developed by Apple are considered third party applications. Likewise, any Windows programs developed by companies other than Microsoft are called third party programs. Since most programs are developed by companies other than Apple and Microsoft, third party applications make up the majority of software programs.

In computer programming, a third-party software component is a reusable software component developed to be either freely distributed or sold by an entity other than the original vendor of the development platform. The third-party software component market thrives because many programmers believe that component-oriented development improves the efficiency and the quality of developing custom applications. Common third-party software include macros, bots, software/scripts to be run as add-on for popular developing software.

 Some programs also support third party plug-ins, which add functionality to the software. For example, Adobe Photoshop supports plug-ins that add features like extra filters and selection tools to the program. These plug-ins may be created and distributed by other companies, but are designed to work with Adobe Photoshop. Therefore, they are called third party plug-ins.