Karta GPS pairs open-source map data from OpenStreetMap with curated content from Yelp and which other local search-and-discovery service app?
Karta GPS:  It is distributed for free and pairs open-source map data from OpenStreetMap alongside curated content from Yelp and Foursquare. Foursquare: Foursquare is a local search-and-discovery service mobile app which provides search results for its users.
i don't know