I downloaded the Ulmon guide for four cities in preparation for a recent trip to Europe: Munich Prague Vienna and Amsterdam. You can drop pins, actually stars on places that youre interested in visiting including sites restaurants hotels etc. The off-line maps are fantastic and the articles helpful. I tend to keep my phone on airplane mode when I am out of the United States this app was fantastic because I was able to use the map even when I wasnt in Wi-Fi. Download the guides before you go on your trip if possible this way you can read and save articles but if you dont download it until youre there thats fine too.
JenLaReina about Munich Travel Guide and Offline City Map, v8.1.1