Pushover for me and my wife

What’s the correct way to add TWO distinct pushover accounts? So that I can notify my wife for some things with Pushover and me for other things?

Initially I thought I needed to login my wife to my pushover account on her iPhone and then simply add a device, but as far as I can see, then we wouldn’t be able to do granular notifications.

So am I right I need to setup my wife with a Pushover account of her own?

Thanks!