Meet Toch Smarturns: a smart home kit with intelligent knobs, motion sensor, and hub to make your existing stove smart. It automatically monitors your kitchen and lets you know to return to your unattended stove. It works with most electric and gas stoves.
Toch Smarturns is compatible with iOS and Android devices. It notifies you when cooking starts and finish and keeps you out of trouble. This project is currently getting funded on Kickstarter.