The application pre-selected by the operating system to handle web links and browsing activity, often chosen by the device manufacturer or operating system developer. It is the initial web-access point for users unless they actively select a different application for this purpose. For example, tapping a web link in an email or text message will open this application, unless the user has changed the setting.
This feature plays a crucial role in user experience and developer reach. Control over this application influences how easily users access web content and services. Historically, the ability to modify this setting has varied across different operating systems and versions, impacting the competitive landscape for browser developers. Allowing users to select their preferred application offers greater personalization and choice, potentially increasing engagement with alternative browsing applications.