Google Maps - Find local businesses, view maps and get driving directions in Google Maps.
MyPostcard - Send real photo postcards and greeting cards - worldwide, from any place to anywhere.
OsmAnd - Global mobile map viewing and navigation for online and offline OSM maps
Postsnap - Postsnap's iPhone app is the best, free postcard creator. Make & send real printed postcards, greeting cards, invitations and announcement cards using your own photos.
Komoot - Plan Your Perfect Hiking, Mountain Biking or Road Biking Adventure
Stampix - Photo printing in a fast, easy & ecological way.