In Android sometimes we have to determine that the Specific app is installed in mobile or Not .So here is Code snippet to find the specific package name application installed or not . public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Add respective layout setContentView(R.layout.main_activity); // Use package name which we want to check boolean isAppInstalled = appInstalledOrNot("com.check.application"); // App package here if(isAppInstalled) { //This intent will help you to launch if the package is already installed Intent LaunchIntent = getPackageManager() .getLaunchIntentForPackage("com.check.application"); startActivity(LaunchIntent); Log.i("Application is already installed."); } else { // Do whatever we want to do if applicatio