"Jacobs said RunKeeper is poised to hit 5 million users this month, compared to 2 million at the start of the year. After a big spike of one million downloads in the first week of January, new users are still up five times since going free. Interestingly, RunKeeper’s premium $20-a-year Elite service, has also seen a three times increase in purchases, though Jacobs said that, overall, the company is seeing less immediate revenue than prior to the switch."