The free app, called FindMeID, has been launched in Winnipeg by the Canadian Centre for Child Protection.
The app stores photos and information about children that can be quickly sent to police agencies.
It also gives parents instructions on what to do if their children are missing.
A news release says the app is endorsed by the RCMP Foundation.
Steven Blaney, the federal minister of public safety, says in the release that the government supports all innovative technologies that improve children's safety.