OsmAnd - Global mobile map viewing and navigation for online and offline OSM maps
Citymapper - The ultimate transport app - iPhone / Android / Web.
Google Maps - Find local businesses, view maps and get driving directions in Google Maps.
TransSee - Real time transit prediction and bus tracker web app.
Organic Maps - Fast detailed offline maps for travelers, tourists, hikers and cyclists, based on OpenStreetMap and curated with love by MapsWithMe (Maps.Me) founders.
My Bus Lawrence - My Bus Lawrence is a bus tracking application that is used to find the location and timing of buses in the city of Lawrence as well as The University of Kansas.