SW Maps - SW Maps app enables users to record points, lines, polygons, and images to view them on the desired type of map.
Open Topo Data - Free elevation API.
Etta Homes - Etta Homes app offers features that let you communicate with your real estate agent to discover new properties according to your needs.
Open-Elevation - A free and open-source elevation API.
My Elevation - My Elevation app provides features through which users can get the elevation of their current location from sea level.
Google Maps - Find local businesses, view maps and get driving directions in Google Maps.