In contrast with other video-sharing sites, Vimeo does not use any advertising either on its pages or embedded in videos. Instead, Vimeo sells its services and products to content creators for revenue as a software as a service (SaaS) model. The site offers a free tier of services, limiting uploads to 500 megabytes a week and with a cap on total data, while paid subscriber tiers, first introduced in 2008, give the user higher weekly upload allowances and greater storage capacity.