John S and Goldscott, what iphone units do you have, and what is their storage capacity? I'm afraid my old 4s would get overloaded fast.
Hey Steve,
I do have an iPhone 6 with 64 GB of memory (much unused), but have previously used ViewRanger on an iPhone 4 without problem. You decide which map, and how much to download. You select a "grid" of squares and only that portion is downloaded. You can download several sections, and "manage" your maps, deleting those that you will not be using, and downloading those that you need for any given hike. It's a bit of a hassle (so I like having lots of memory - I just keep them all downloaded), but still very manageable.
Download ViewRanger from the app store. It comes with many free maps, download a few sections, and see what the strain is on you iPhone memory. As long as you have wifi no need to "download" it will pull whatever is needed as you browse (these are not "downloaded" but may be in cache memory for subsequent use).
