Used this app for 3 weeks on the road in some of the remotest parts of Ireland where data signals for travelers are virtually non-existent! It even works in airplane mode!! The only downside is it picks your route for you but the trick around that is to pick a way point on a road you want to take. Depending on how long your journey is, you may have do this a couple of times. Wished Id known about this app for our 3 weeks in the Scottish Highlands...would have saved us a lot of data charges.