A standalone application is an application that runs locally on the device and doesn’t require anything else to be functional. All the logic is built into the app, so it doesn’t need an internet connection nor any other services installed.

Unlike web applications that run in a browser and don’t need to be installed, standalone apps require completely the opposite. They need no browser to run, but often demand a device to be installed on. However, there are also portable standalone applications created for some platforms (like Windows) that can run just by double-clicking a single file, with no installation.