Yes, both SpecFuse and Notion offer a Free Trial.
SpecFuse is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Notion is designed for Individuals, Freelancers, Medium Business and Small Business.
Pricing for SpecFuse Starts at $5/Month when Billed Yearly whereas for Notion Starts at $4/Month when Billed Yearly.
Some top alternatives to SpecFuse includes Smartsheet, Miro, Process Street, Wrike, Notion, ProductPlan, Next Please, Microsoft PPM, ManagePro, Teamwork, ProjectManager.com, Microsoft Project, VisionProject, Changepoint PPM, Plan, Quick Base and ClickUp.
Some top alternatives to Notion includes Jira, Knote, Trello, Confluence, Asana, Easynote, ClickUp, TWiki, MeisterNote and Zenkit Hypernotes.