<http://schema.org/description>
"\r\nThe freemium model has been a popular one for app developers to date. But it doesn't always work, and with so many apps on the market now, it's worth reevaluating.\r\n\r\nTo learn more, ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/entrepreneur/2013/11/10/pros-cons-giving-away-app/>