The UK Singles Downloads Chart is compiled by the Official Charts Company (OCC) on behalf of the music industry. Since July 2015, the chart week runs from Friday to Thursday, with the chart date given as the following Thursday.[1]
The main chart contains the Top 200 downloads (which are published in UKChartsPlus), with the top 100 published on the OCC website. The chart only uses sales of permanent digital downloads, that is single-download tracks on non-subscription online music stores. Some downloading services offer a monthly fee plan where generally an unlimited number of tracks can be downloaded within a month for a certain price. Tracks downloaded in those instances do not qualify.[citation needed]
An album equivalent, the UK Album Downloads Chart, was launched in April 2006.