OneDesk offers Free Trial, but Notion Second Brain does not.
Notion Second Brain is designed for Large Enterprises, Medium Business and Small Business.
OneDesk is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Notion Second Brain Starts at $129 whereas for OneDesk Starts at $12/user/month when yearly.
Some top alternatives to Notion Second Brain includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Wrike, OneDesk, ProjectManager.com, Ora, Kanbanize, Quick Base, OmniFocus, Height, Yodiz, Infinity and Project Insight.
Some top alternatives to OneDesk includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Freshbooks, Jira, Wrike, TeamGantt, Teamwork, ProjectManager.com, Backlog, Worksuite, Quick Base, Resource Guru, Jira Service Desk, HelpDesk, HESK, Height and Scopedesk.