What is standby mode on Android?

App Standby puts apps into “standby” mode when you aren’t actively using them. In general, if you never launch an app, Android will put it into standby mode. However, apps that display notifications on the notification tray or on the lock screen won’t go into standby mode.

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What happens when an Android app starts?

An Android process is started whenever it is required. Any time a user or some other system component requests a component (could be a service, an activity or an intent receiver) that belongs to your application be executed, the Android system spins off a new process for your app if it’s not already running .

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