Annoying pop ups

It is extremely irritating that this app has a pop up ad every time you open it. It says click here for a free upgrade and takes you to the App Store to download a separate app. Even when I downloaded the other app, the ad still popped up. This made it extremely difficult to look at the map and get around the city. This app is absolute garbage.

Jgccnd about Tokyo Rail Map+ Lite • Yokohama, Saitama, Chiba, v5.1