What are some alternatives?
When comparing Crello and Affinity Designer, you can also consider the following products
Canva - Canva makes design simple for everyone. Create designs for Web or print: blog graphics, presentations, Facebook covers, flyers, posters, invitations and so much more.
Sketch - Professional digital design for Mac.
Adobe InDesign - Adobe InDesign is a desktop publishing software application.
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.