Napster Software Application Usage Soars 500% 10/10/2000 According to the latest findings from Media Metrix, usage of the Napster software application in the USA increased from 1.1 million users in February 2000 to 6.7 million users in August 2000, a 506.8% increase. Further highlights on Napster, the controversial music file-swapping service, include: Napster remains the fastest growing home software application ever. Napster software-application usage grew more than 30% from July to August 2000, both at home and at work, to 6.7 million and 1.2 million unique users, respectively. Penetration of the Napster software application increased significantly among online-computer users at home: 8.5% used the Napster application in August 2000, up from 1.4% in February 2000.