They get money for free so...

"How much does it cost to make a phone app to tell local temperature and suggest how not to get heatstroke, such as drink water and avoid alcohol? If you're the U.S. Government, it'll cost you a pretty penny. Using MuckRock to file a Freedom of Information Act, Rich Jones of GUN.IO discovered the Department of Labor, Occupational Safety and Health Administration paid $106,467 for the Android version; $96,000 for the iPhone version, and an additional $40,000 for a BlackBerry app that never got distributed."