Neither Polotno nor Sketch offers a free trial.
Polotno is designed for Large Enterprises, Medium Business and Small Business.
Sketch is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Polotno Starts at $10,000 whereas for Sketch Starts at $9/User/Month.
Some top alternatives to Polotno includes Looka, PhotoEditor SDK, Canva, CorelDraw, Sketch, EDIT, DesignGapp, Desygner, CreativeEditor SDK, Designmaker and Canva Visual Worksuite.
Some top alternatives to Sketch includes Looka, Figma, Canva, CorelDraw, Xara Designer Pro, Drawtify, DesignGapp, Adobe Illustrator, Vectornator Pro and Gravit Designer.