It is frequently used for annotation, image correction, and drawing mockups and diagrams. Vectr allows importing such format files as AI, EPS, SVG, PNG, and JPEG. It has several levels and pages, which help organize the project.
It’s a simple and understandable picture editor, that allows you to perform standard vector operations such as creating and editing geometric figures, curves, etc.
Vectr is a relatively new app, which is rapidly developing, gaining various enhanced functions, which makes it a better option than the free version of Adobe Illustrator.