The Google Maps Web Services Objective-C Sample Code demonstrates how to access the API to implement mapping into applications. It provides the recommended SDK for accessing JSON-based Google APIs for iOS and Mac OS X applications. The SDK is compatible with applications built for iOS 7 and later, and Mac OS X 10.9 and later.
Data startup Factual has been one of the most covered product offerings on our site. Over the last couple of years, it has expanded its open data set platform, using location data as its main offering to developers via its Factual Places APIs. The Factual team is on full steam and has just announced a single global API to access place data and added new countries. The company also is making available a rich collection of attributes about each restaurant in its places database.
MapQuest is known for driving directions. Now it hopes to bring those to mobile navigation systems everywhere. Today the company has launched the MapQuest Open Guidance API built on top of OpenStreetMap. Developers will now be able to include turn-by-turn directions in mobile apps without any usage limits being imposed by MapQuest.