The advice which seemed best to me was to use Ionic, but upon getting it set up, my IOS and Android screens appear to be the same size. And I can’t find any choices on for what size sceen I’m testing on either.
I tend to use the CLI interface with Chrome inspector.
Install google chrome and configure it to your standard browser if it isn’t.
go to your command prompt and navigate to the folder of your project .
Then type: ionic serve
Now your default browser will open up with the app loaded.
Open up your inspector window and there you can configure whatever resolution you like
Btw, you can do this from ionic lab.
Just click the button in the preview window to export to browser, once in the browser you see android and IOS previews. Just select either and from there you can also open chrome inspector and do the same.