Navfree

Navfree is a full GPS application that offers turn-by-turn directions and an offline point-of-interest database. It also has other features that you might be accustomed to from GPS devices, including spoken directions.
Navfree uses OpenStreetMap data. When you launch it, you’ll be able to download a map for one or more countries. If you’re looking for maps of the USA, you’ll need Navfree USA instead.

Navfree provides an interface that you’ll be familiar with if you’ve used GPS devices. Some of the features, like the Google Search feature, require a data connection, but the basic map-viewing, navigation and point-of-interest features don’t.

For my location (Vancouver, BC), the point-of-interest database wasn’t as complete as it is on commercial GPS applications. There’s a good chance it may be better in your area, though. And OpenStreetMap’s data will continue to improve over time as users add to it.
The below screenshot was taken in night mode, but there’s also a brighter day mode.

 

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