Hybrid App
Hybrid apps are also popular because they allow cross-platform development and thus significantly reduce development costs that is, the same HTML code components can be reused on different mobile operating systems. Using the power of HTML, the shell can connect to whatever capabilities the mobile platform provides through a browser that's embedded in the app. The browser and its plug-ins run on the back end and are invisible to the end-user. Hybrid apps are applications that are installing on a device. Hybrid apps are popular because they allow developers to write code for a mobile app once and still accommodate multiple platforms.
Because hybrid apps add an extra layer between the source code and the target platform, they may perform slightly slower than native or web versions of the same app. Hybrid apps are deployed in a native container that uses a mobile Webview object.
It is displaying web pages from a desktop website that are adapted to a Webview display. The web content can either be displayed as soon as the app is opened or for certain parts of the app only for the purchase funnel.