The following application statistics are based on the analysis of web server requests. All data comes from Tor web server logs which are provided in a stripped-down version of Apache's "combined" log format without IP addresses, log times, HTTP parameters, referers, and user agent strings.
This graph shows absolute numbers of requests to Tor's web servers to download a Tor Browser executable and requests made by Tor Browser to check for an update, broken down by platform (Windows, macOS, Linux). Note that, at least for initial downloads, this graph does not show the platform used to download Tor Browser but the platform that it was downloaded for.
This material is supported in part by the National Science Foundation under Grant No. CNS-0959138. Any opinions, finding, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. "Tor" and the "Onion Logo" are registered trademarks of The Tor Project, Inc.. Data on this site is freely available under a CC0 no copyright declaration: To the extent possible under law, the Tor Project has waived all copyright and related or neighboring rights in the data. Graphs are licensed under a Creative Commons Attribution 3.0 United States License.