A free program for Android, by Aerostatmaps.

If you love traveling, you will love this app! It’s a free application for Android that offers offline maps that will help save time while going on a trip. You can use this anywhere, anywhere you want because it does not require an internet connection. 

In this app, you will be able to see all the tourist attractions in the city you will visit. You can also search for the nearest stations such as airports, metro, and trains, as well as places to stay such as hotels. In addition, you can save the places you visit or will visit for future use.