Affinity Designer vs Principle

Affinity Designer is a vector graphics editor developed by Serif (now owned by Canva) for graphic design, illustration, and UI/UX work. Originally sold as a one-time purchase alternative to Adobe Illustrator, Affinity became completely free in 2025 following Canva's acquisition of Serif. The application combines vector and raster design tools in a single workspace with professional-grade features.

Principle is macos app for designing animated and interactive user interface prototypes with a timeline-based animation editor.. It is available under a paid model. This tool falls under the design category.