What are some alternatives?
When comparing Aphalina Designer and Vectr, you can also consider the following products
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Affinity Designer - Professional creative software, exclusively for Mac.
Sketch - Professional digital design for Mac.
CorelDRAW Graphics Suite - Empower your creativity with CorelDRAW Graphics Suite 2018, packed with powerful features and updates to transform creative ideas into visually stunning designs! Learn more or download a free trial today!
Adobe Illustrator CC - Adobe Illustrator CC is a commercial vector graphics editor.
ProtoSketch - Powerful yet simple vector graphics editor and prototyping