Apple (NASDAQ:AAPL) is trying to fend off Google (NASDAQ:GOOGL) from the taking too much share in mobile, while at the same time keeping Microsoft (NASDAQ:MSFT) from gaining traction in mobile. Apple's solution has been to offer more and more services and software for free, easing some of the sticker shock on Apple devices. 

Apple has long offered many free services like iCloud and Photostream for free, but it's now offering iWork, iOS, OSX, and iTunes Radio without charge. What's the reason for the move? 

Apple may be leveraging its dominant place in mobile to expand PC sales. The iPhone and iPad are common business devices but the Mac hasn't caught on in corporate America yet. In the video below, Fool contributor Travis Hoium discusses why the PC market may be the real driver of the free strategy at Apple.