Police said the app, called "Neighbors," delivers information from the Quincy Police Department to people's phones.
Chief Paul Keenan likened the app to a neighborhood watch in a statement Monday.
"We are always looking for innovative ways to keep our community safe," Keenan said. "We are proud to be the first police department in Massachusetts to partner with 'Neighbors' in an effort to reduce crime."
Police said people can use the app to share crime and safety-related videos, photos and texts and receive safety alerts from the police department. The app displays information posted by users on a map.
"More than ever, residents are using security cameras and smartphones to capture and share potentially crucial information," Keenan said. "It is our hope that by using the 'Neighbors' app, crime information and home security video can be easily shared between neighbors and police to quickly solve and reduce crimes."
People can download the free app to their phones or can follow a link by texting 'quincypd' to 555-888 from a smartphone.
The app was developed by California-based company Ring, which sells home security devices.
©2019 The Patriot Ledger, Quincy, Mass. Distributed by Tribune Content Agency, LLC.