Domika

A native iPhone client for Home Assistant, focused on the things you actually do every day — turning off lights, adjusting the AC, closing the garage — rather than every setting the system has.

It brings those controls to home-screen widgets, lock-screen and Control Center buttons, and compact dashboards, and can send critical push notifications for events like a fire or water leak. Dashboards are free; widgets, critical alerts, and shortcuts need a subscription. Multiple Home Assistant instances are supported at once.