Spera offers Free Trial, but ClearVoice does not.
Spera is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
ClearVoice is designed for Individuals, Freelancers, Medium Business and Small Business.
The starting price of Spera begins at $9.99/Month, while pricing details for ClearVoice are unavailable.
Some top alternatives to Spera includes Worksuite, Cushion, Betterlance CRM, 8Demand, ClearVoice, Harlow, Fiverr Workspace, Hectic, Husky, TalentDesk.io and Betterlance.
Some top alternatives to ClearVoice includes Posted, Skyword, EasyContent, NinjaContent, BrandpointHUB, TypeJust and Content OS.