The power that this app packs into the iPhone is mind blowing

I first started using Gaia GPS on my iPod Touch, where offline maps are necessary. You get access to a wide variety of detailed topo and street maps. Accessing them is simple and you can save quite a large section that can be zoomed-in for complete details without a WiFi connection. And you get Canadian topos too (yeah!)

And with my iPhone 7, it is much more useful, even when I am in the mountains far away from any connection. The feature list is impressive whether you want route tracking or navigation. The developers are super-responsive and are constantly adding new features; truly an app made by real outdoors people for others like them.

Buy it; you wont be disappointed.

about Gaia GPS Classic, v10.9.4