What is the difference between background and foreground services in Android?

Foreground vs Background

Foreground:

The process relies on onPause() and onResume()...for example, if you're listening to music and pushing pause and play, the process will pause and resume.

The startForeground API can be used to place a started service into a foreground state, which means the system considers it something the user is actively aware of.

When the user interacts with the application and the service performs an action that is visible to the user, the foreground service is used.

Background:

The processes that execute without user interaction. for example Receiving a message, receiving mails, or an incoming call, onStart() and onStop() are the methods used here.

Services are by default background, which means that if the system needs to kill them to free up memory (for example, to show a huge page in a web browser), they can be stopped without causing too much harm.

Even after the user closes the application, the Background Service is used.