Wireframe.cc offers Free Trial, but Rapid Mockup does not.
Rapid Mockup is designed for Large Enterprises, Medium Business and Small Business.
Wireframe.cc is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Rapid Mockup Starts at $5.90/Month whereas for Wireframe.cc Starts at $12/Month when Billed Yearly.
Some top alternatives to Rapid Mockup includes Miro, NinjaMock, Balsamiq, Wireframe.cc, Claritee, Mockup Clips, Morflax Things, Mockups by Glorify, Zen Wireframe and Lightning Builder.
Some top alternatives to Wireframe.cc includes Miro, HotGloo, NinjaMock, Balsamiq, Moqups, Axure RP, Wirify, Claritee, Stage, Zen Wireframe and Mockframe by 500apps.