The 25000 apps and 500 million downloads on 23 million devices act as a part of a software strategy, which creates a distinct stickiness for the iPhone and enhances customer loyalty over the long term. It is believed that the Apps personalize the iPhone to levels that competitors cannot match and consumers cannot do without. This creates a huge stickiness between the consumer and the product. A device tailored by him according to his requirements in the one thing that he needs the most and at present Apple does seem to have both the device and software wherewithall to give suffice his need.
While Apps range from free to $999, it is but obvious that the ones in the lower price brackets < $2.99 consitute 80% of the apps and probably will also feature as much in the downloads!