Promptly is a messaging app built by a team of Code for America fellows with SF Health & Human Services, to help keep people enrolled for foodstamps by sending them reminders when they are about to lose their status. You can see more about it on the company Postcode’s site.
TextMyBus for Detroit Transit Info
TextMyBus is a Code for America project with the Detroit government to get messages about the bus arriving through simple texts. Get real-time bus arrival information in Detroit. Source: TextMyBus – Detroit Transit Info