Smart home alarm systems are all the rage, but they’re also very expensive. A relatively simple setup can cost hundreds of dollars, with things like installing glass-breakage and leak sensors driving the price up. Or you can use this iPhone trick.
Scroll a bit down in the Accessibility tab in Settings (1), and you’ll find a tab for Sound Recognition. Switch it on (2) and your iPhone will listen for over a dozen sounds (3) using on-device intelligence and “notify you when sounds may be recognized.” Sounds are organized by category and include many common ones:
Alarms: Fire, Siren, Smoke
Animals: Cat, Dog
Household: Appliances, Car Horn, Door Bell, Door Knock, Glass Breaking, Kettle, Water Running
People: Baby Crying, Coughing, Shouting
You can select as many as the sounds as…