The Android SDK devices aggregate your code alongside any information and asset records into an APK, an Android bundle, which is a document record with an .apk postfix. One APK document contains every one of the substance of an Android application and is the record that Android-controlled gadgets use to introduce the application.
Every Android application lives in its own security sandbox, ensured by the accompanying Android security highlights:
The Android working framework is a multi-client Linux framework in which each application is an alternate client. Of course, the framework relegates each application a one of a kind Linux client ID (the ID is utilized just by the framework and is obscure to the application). The framework sets consents for every one of the documents in an application with the goal that lone the client ID doled out to that application can get to them.