The Intel AppUp center was a digital storefront for existing and new PC software, apps, content and entertainment, developed by Intel for Windows-based Ultrabook devices, netbooks, laptops, and personal computers. Peter Biddle, Intel AppUp's marketplace visionary, called Intel AppUp "the world's largest app store that nobody's ever heard of." Intel AppUp had a presence in more than 60 countries with the ability to conduct transactions in more than 45 countries in 5 languages. Applications were submitted through the Intel AppUp developer program.