Inkscape is described as 'Open source vector graphics editor supporting SVG with features like custom brushes, pressure sensitivity, and layer management across multiple platforms' and is a leading Vector Graphic app in the photos & graphics category. There are more than 100 alternatives to Inkscape for a variety of platforms, including Windows, Mac, Web-based, Linux and iPad apps. The best Inkscape alternative is Linearity Curve, which is free. Other great apps like Inkscape are Adobe Illustrator, Affinity, Graphite and LibreOffice - Draw.
It does not have all the features that Inkscape has, but it is a much lighter weight free & open source alternative.