Neither Octopus.do nor Zen Wireframe offers a free trial.
Octopus.do is designed for Individuals, Freelancers, Medium Business and Small Business.
Zen Wireframe is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Octopus.do Starts at $7/Month when Billed Yearly whereas for Zen Wireframe Starts at $9/User/Month.
Some top alternatives to Octopus.do includes Miro, NinjaMock, Balsamiq, Axure RP, Wireframe.cc, Wirify, Claritee, Stage, VisualSitemaps, Zen Wireframe and Lightning Builder.
Some top alternatives to Zen Wireframe includes Miro, NinjaMock, Balsamiq, Axure RP, Wireframe.cc, Wirify, Inspireframe, Claritee, Stage and Lightning Builder.
