The small widget is included
Add the widget through the iPhone Home Screen editor. Open Is It Locked? once and record a check first, so there is something to show.
More room with Plus
Medium and large Home Screen widgets and Lock Screen widgets are Plus features. Their layouts show your saved information in different spaces.
Opening and recording stay separate
A widget can navigate to the app. It never records a checklist item silently. Widget updates also depend on iOS scheduling.
Use it with your own checklist
The free checklist gives you one place, unlimited items, and seven days of Activity. Plus is optional for the extra features.
Get the app freeiOS 27 or later. One place and one list are free.
The app records what you checked. It does not lock doors, switch off appliances, or verify their physical state.
Sources and review notes
App behavior was checked against the public 2.0.0 listing and a read-only review of the app source. This is separate from a fresh physical-device walkthrough.