I am developing iOS and android application. I want to prevent the user from logging in into the app from the different devices which may have different sim card into the devices.
For Example, If user has device A and he logged in into the app, then he cannot get log in into the app from other devices called as device B which has different sim card. Also, please note that if the user has a same mobile number on different devices, then he is an authorize user and can log in into the app.
So, Can i put restriction based on user's sim card details? or else what can i do to prevent the users from getting an unauthorized log in into the app?
Any help will be appreciated. Thanks in advance.