Metro Map: Paris (Offline) is a free Android application developed by Apptastic Software. It falls under the category of Travel & Navigation and is compatible with Android 9.0. The app provides a complete set of offline maps for metro, bus, night bus, airport access, RER, and transiliens from the official RATP sources.

The app is very user-friendly and easy to use. It is an excellent app for both visitors and longtime residents of Paris. The offline feature is a plus as it does not require an internet connection. You can zoom in, zoom out, and scroll around the maps very quickly and easily. The app includes line maps for Paris subway, tramway, RER, SNCF Transilien trains, buses, night buses, city map, subway, metro, and underground maps.

Overall, Metro Map: Paris (Offline) is a great app for anyone travelling to or living in Paris. The offline feature and the complete set of maps make it very convenient to use. As for feedback or problems, the developer has provided an email address for users to contact them.