Polypattern is described as 'Digital textile pattern making'. There are five alternatives to Polypattern for Mac, Windows, Linux, Online / Web-based and BSD. The best alternative is Seamly2D, which is both free and Open Source. Other great apps like Polypattern are Valentina (Free, Open Source), Create by Crea Solution (Paid), Tailornova (Paid) and CLO3D (Paid).
Seamly2D is a cross-platform patternmaking program which allows designers to create and model patterns of clothing. This software allows pattern creation using either standard sizing tables or an individual’s set of measurements.
Tailornova is the first and only complete web-based 3D fashion design platform that delivers apparel and accessory design tools, expands fashion design skills, maximizes entrepreneurial productivity and simplifies the design process.