Hi @shibam
Welcome to the Auth0 Community. Great to have you on board 
To go back to the app after email address verification I believe you would need to configure the default login route as this is used by the email verification flow https://auth0.com/docs/authenticate/login/auth0-universal-login/configure-default-login-routes#complete-email-verification-flow and it adds a button that users can click to return to the app.
For native apps you can still use the field it is a bit different and there is a workaround suggested here https://community.auth0.com/t/setting-application-login-uri-for-mobile-apps/99149 please review and let me know if you have any further questions.
Warm regards.