Wanderlog

Wanderlog is a free travel app (with an optional Pro subscription) for planning every kind of trip, including road trips and group travel: create a trip itinerary, budget costs, organize flight and hotel reservations, view places to visit on a map, and collaborate with friends. With Pro, you can also export your trip to Google Maps and link your Gmail account.

Best when the trip needs a collaborative itinerary instead of a pile of screenshots, notes, and booking emails.