I'd also strongly endorse its on-the-street mobile app counterpart, StreetComplete. Splitting stuff into tiny tasks you can focus on really helps if you're just out on foot in an area.

This is the app I miss the most switching from android to ios. I so wish there was an ios app of streetcomplete.

Or if you are looking for pretext to walk a bit in area known to you :)

What do you mean by this? Does the app have a way of showing you new things in familiar areas?