Ring
Cameras and doorbells (live view, motion, rings and recordings in the Home app), lights, the alarm and its sensors, and chimes. Sign in with the email and password you use in the Ring app, then the code Ring sends you. Ring then gives the helper a sign-in of its own, so your password isn't kept.
The helper keeps what you type only on this computer, to talk to Ring for you. It never shows it again.