As a reminder, Marcos Costales has worked at a GPS navigation application for Ubuntu Touch for a while now. The application, called intuitively GSP Navigation, has been finally added to the Ubuntu Store, being available for everybody that owns an Ubuntu phone.
The application is based on OpenStreetMap and OSRM, which provide accurate and updated maps. It supports setting a destination, displays the arrival time, gives turn-by-turn indications, shows how many kilometers or miles are left until the destination is reached, has a speed indicator, can be used on both landscape and portrait views and permits the users to set a home place with a single tap on the map. The app is for driving only, so it cannot give you walking indications.
Also, the application works only online so a reliable internet connection is needed, but the internet traffic shouldn’t be a problem, since GPS Navigation eats 2 MB of internet data per 10 km/6 mile or 20 minute usage.
The software has been tested on Bq Aquaris E4.5 Ubuntu Edition and Nexus 4 running Ubuntu, but should be supported also on the Meizu MX4 Ubuntu phone, which should be shipped to Europe soon.