SimilarWeb - SimilarWeb.com is a website analysis tool that gives you analytics information for any website.
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Website Informer - Website.informer: complete data lookup & free aggregated report on any domain including whois, visitors, IP & DNS details, competitors, owners, etc
Sketch - Professional digital design for Mac.
Site Rank Data - View historical rank information of websites via time series charts.
Affinity Designer - Professional creative software, exclusively for Mac.