Here WeGo Maps App...
If you are driving in the UK or actually, anywhere in the World. The Here WeGo app is brilliant for providing offline navigational maps.
Before you head out to a country, download the maps offline for the destination and make sure you click “Use Offline.”
It then provides offline support in the way of turn by turn navigation and its accurate. Where available, it will also provide you with speed warnings so you don’t land yourself a ticket.
Definitely worth a download!