NASHUApp is a lifestyle application designed for iPhone users, specifically tailored to the city of Nashua, New Hampshire, USA. The app allows users to discover and track their favorite sit-down dining spots in Nashua. Users can mark restaurants as "tried" or "loved" using convenient checkboxes and heart icons. In addition to restaurant features, NASHUApp provides users with Nashua's 5-day weather forecast and local Twitter feeds for added convenience.

To be listed in the NASHUApp restaurant directory, establishments must serve full meals, offer dine-in seating, be located within Nashua, New Hampshire, not be a national fast-food chain, and operate more than four days a week. Currently, the app includes over 120 qualifying locations as of September 2021.