Metro of Saint Petersburg is a simple, yet practical app for both locals and tourists. Available for Android devices running KitKat 4.4 or higher, the app offers offline access to the Saint Petersburg metro map in both English and Russian. It's a no-frills app that allows users to scroll, zoom in and out, and switch between different types of transit maps.

The app is easy to use and straightforward. It offers a convenient way to navigate the metro system without the need for an internet connection. The maps are subject to Creative Commons and GNU licenses and were created by Chinese Wikipedia user Sameboat.

While the app doesn't guarantee the accuracy or completeness of its content, it serves its purpose well for those looking for a simple and practical way to navigate Saint Petersburg's metro system. Users can also leave feedback, ideas, and suggestions on the developer's website.