A free app for Android, by Topobyte.de.

This map app offers the easiest and most intuitive way to explore the city of Dublin. It is an offline app and no internet access is required after the installation. Additionally, it offers a search index to find streets and other locations of interest. You can search by address or by geographical location.

You can see the locations of all the streets in Dublin, including the ones that are part of the route of the Green Line, the main public transit route that connects the city center with the surrounding areas. Moreover, you can search by different types of locations such as streets, parks, shops, or restaurants.