ClickUp offers Free Trial, but AirSend does not.
AirSend is designed for Individuals, Medium Business and Small Business.
ClickUp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for AirSend Starts at $4/User/Month whereas for ClickUp Starts at $7/User/Month when yearly.
Some top alternatives to AirSend includes ClickUp, CollaborateCloud, Zoho Cliq, Airtable, Nextcloud, JANDI, Microsoft Teams, mi.team, Google Workspace, NokNok and Teamwork Chat.
Some top alternatives to ClickUp includes Basecamp, Trello, TeamGantt, Asana, Teamwork, ProjectManager.com, ProWorkflow, nTask, Todoist and Height.