What is the best offline map app on iOS?

Right now Guru Maps and/or Organic Maps seem like pretty good options? Have any of you used either? Which do you like better and why?

Guru Maps seems to have more features (like car play/voice directions) but is a paid app (has a free tier though or lifetime subscription). Organic Maps is free and open source (and potentially more privacy focused).

Price aside, which do you think is better and which would you use on a trip where you don't have Internet at all? Or is there another option you think is better?