What is plug-in?

Plug-in means a plug-in module or plug-in software in computing. It is software additions that gives specific features to the current software program. A software add-on does not alter the existing program. A plug-in is required when the website owner needs an additional functionality. For example, if you want to publish a donation campaign or make a new product launch, a software add-on will be needed. 

When a plug-in is called, it is generally the WordPress plug-in that users will remember. The user pays for what they get. But paid plugins don't always mean a good quality or a need for customer. The user might be confused about buying paid plugins for each feature. The budget must also be considered in purchasing. Although WordPress plug-ins can be a good solution for basic websites, there are also customized plug-ins that a web developer can make it available for complicated websites. These plug-ins are also customized to user need and might be a reasonable solution.