1password, Sonos, Fastmail.
Other than that, most things I do really are in Apple’s included apps. Safari, Music, Maps. I use a few other apps but Safari could replace them, except maybe Uber or Lyft when I need them. I use my bank app a fair amount though and sometimes for mobile check deposit, I guess Safari couldn’t do that.
Fastmail in the Apple Mail app is really not bad but this custom app is good.
