Nokia Maps and its voice-guided, turn-by-turn walk navigation is now available for iOS and Android.

The service is available via an HTML5 Web app rather than separate apps in each of the platforms' app stores, though it can be added to your home screen by tapping the middle button on the menu and selecting "Add to Home Screen."

Users can access the maps via m.maps.nokia.com on their iPhone or iPad, or a device running Android 2.3 and higher, Nokia said in a blog post.

"No one is stuck with other mapping services, anymore, you can access Nokia Maps extensive places directory and high quality directions also on m.maps.nokia.com and from today with voice-guided walk navigation too," Nokia said.

When navigating to the Nokia Maps mobile site, the company will first ask you for permission to access your location, and it will do so each time you access the site.

"If it's precise mapping and routing you're after, then you'll need to accept this," Nokia said. "But don't worry, this is only used for routing purposes."

Accessed on an iPhone 4, the Nokia Maps mobile app looks much like the pre-installed Google Maps app, with a few additions - most notably, the audio option. To access spoken, turn-by-turn directions, you have to download a 1.9MB audio file. At this point, it only works for walking directions since Nokia Maps mobile was "designed for an urban use case," Nokia said.

There are, however, options for non-speaking driving routes and public transport, as well as different views - the default Map view, Satellite view, Public transport view, and Live traffic view.

When you first sign in, tap the green button on the bottom left to find your current location. To get directions, type your destination into the Search bar up top. If you search for a business, there will be the option to call them, share on social networks, route from your current location, and add to favorites.

Nokia Maps also provides "Nearby places," like restaurants, shopping, nearby sights, and public transportation options.