I recently wrote a tutorial that teaches you how to implement a login and registration flow within your NativeScript with Angular application:
This is a very useful tutorial because not only do all apps need an authentication flow, but it demonstrates how to properly use the Angular Router and design an attractive user interface.
Hey @radhe12! Yes you can with Nativescript Core.
Please have a look at application-settings,
I already got that and created app.
Thanks for your help.