App to launch external site with multiple profiles

I am trying to build my first ionic app for my kids in grade school. They have their own user accounts for handful of websites and they share one iPad. I am thinking that this app will prompt the kid to select the profile using a picture and launch an external website in the app. The subsequent launch of the app should resume the previous session of that website.

I will need two separate instances of this app so that the data (offline data, cookies, etc.) is kept separately.

Any pointers to get started on this are appreciated.