Flow offers Free Trial, but Microsoft SharePoint does not.
Microsoft SharePoint is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Flow is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Microsoft SharePoint Starts at $5/User/Month whereas for Flow Starts at $6/User/Month when Billed Yearly.
Some top alternatives to Microsoft SharePoint includes ClickUp, Confluence, CollaborateCloud, Collabee, Microsoft Teams, mi.team, Google Workspace, Google Sites, Teamwork Spaces, Dropbox Business and Teams.cc by 500apps.
Some top alternatives to Flow includes Smartsheet, Miro, Process Street, Wrike, Notion, TeamGantt, Teamwork, ProjectManager.com, Microsoft Project, ProWorkflow, Trackboard, TaskBranch, Quick Base, ClickUp, Height, Task Flow and Project Insight.