An Apple version of the app was launched last year. About 40,000 people have downloaded it.
The app allows users to search for registered North Carolina sex offenders by GPS location or street address.
"Knowing where sex offenders live can help you plan for your family's safety," Cooper said. "Now people can have this critical safety information at their fingertips, wherever they are."
The app is available for download via the Google Play Store or at http://ncdoj.gov.