Yes, both Wireframe.cc and Claritee offer a Free Trial.
Wireframe.cc is designed for Large Enterprises, Medium Business and Small Business.
Claritee is designed for Individuals, Medium Business and Small Business.
Pricing for Wireframe.cc Starts at $12/Month when Billed Yearly whereas for Claritee Starts at $10/Month when Billed Yearly.
Some top alternatives to Wireframe.cc includes Miro, HotGloo, NinjaMock, Balsamiq, Moqups, Axure RP, Wirify, Claritee, Stage, Zen Wireframe and Mockframe by 500apps.
Some top alternatives to Claritee includes Miro, NinjaMock, Balsamiq, Moqups, Axure RP, Wireframe.cc, Wirify, Stage, Previewed, Zen Wireframe and Mockframe by 500apps.