Instant Owner Info Widget is a free Android app developed by Thomas Rorvik Skjolberg that offers a lock screen widget for displaying owner information. The app maximizes the chance of your device being returned if lost. The app is categorized as a utility and tool and requires no special permissions or tracking. It offers four different clock-friendly display modes, including clock + name, clock + your photo, clock + company logo, and clock first, then business card after a delay.

To use the app, simply touch and hold the current lock screen widget and expand it to full size. Then touch and hold the lock screen widget a second time, move it to the trash, and a big 'plus' icon should appear, allowing you to add this widget. To troubleshoot any issues, make sure 'Multiple widgets' is checked under 'Lock screen' in settings if you are using Android 4.3 and up.

Overall, Instant Owner Info Widget is a simple and effective way to provide critical owner information on your device's lock screen.