HERE WeGo!

OpenStreetMap is a project aimed squarely at creating and providing free geographic data such as street maps to anyone who wants them. It is a free editable map of the whole world. It is made by people like you. It allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth.

Waze is a social GPS navigation app that allows drivers to build and use live maps & real-time traffic updates to improve their daily commute.

OsmAnd is a map and navigation application with access to the free, worldwide, and high-quality OpenStreetMap data.Enjoy voice and optical navigator, viewing POIs (points of interest), creating and managing GPX tracks, using contour lines visualization and altitude info (through plugin), a choice between driving, cycling, pedestrian modes, OSM editing and much more.

MAPS.ME offers the quickest offline maps of all the countries of the world. Travel with full confidence: wherever you are, MAPS.ME addresses all your offline mapping needs.

With Street View you can explore the world at street level.

Yandex.Maps gives you access to maps of over 1800 cities and towns right in your pocket. Find addresses and companies. Plan your journeys in a car or on public transport taking current traffic conditions into account. Keep tabs on what's happening on the road as you travel – view traffic jams, road closures or accidents on your way.

Maps gives you turn-by-turn spoken directions, interactive 3D views, and Flyover. All in a vector-based interface that scales and zooms with ease.Maps also gives you guidance to take public transportation and helps you explore your surroundings, so you always know what's around you.

MapBox makes it easy to design beautiful custom maps, and fast to integrate them into websites and mobile applications using Open Street Map data.

Modest Maps is a small, extensible, and free library for designers and developers who want to use interactive maps in their own projects. It provides a core set of features in a tight, clean package with plenty of hooks for additional functionality.

GMap.NET is great and Powerful, Free, cross platform, open source .NET control. Enable use routing, geocoding, directions and maps from Google, Yahoo!, Bing, OpenStreetMap, ArcGIS, Pergo, SigPac, Yandex, Mapy.cz, Maps.lt, iKarte.lv, NearMap, OviMap, CloudMade, WikiMapia, MapQuest in Windows Forms & Presentation, supports caching and runs on windows mobile!

Sygic GPS Navigation & Maps is the most advanced GPS navigation app with 3D offline maps from TomTom, accurate door-to-door voice guided navigation and free map updates.