The city has been selected as one of 35 communities to make use of a special smartphone application that will allow residents to directly report graffiti, potholes, and other problems to city agencies. The state and the city of Boston on Dec. 17 launched the Commonwealth Connect Connect app, based on the Citizens Connect app that has been used by Boston since 2009. As a result of Woburn’s participation, local residents with smartphones who download the free software will be able to snap a photo of a problem, note its location, and submit to the city. The relevant department will issue a tracking number for each report, and residents will be able to follow the progress of the city’s response through completion. The app is funded by the state’s Community Innovation Challenge Grant program. Woburn was among 59 communities to apply.