Yes, both Notion and Kanbanize offer a Free Trial.
Notion is designed for Individuals, Freelancers, Medium Business and Small Business.
Kanbanize is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Notion Starts at $4/Month when Billed Yearly whereas for Kanbanize Starts at $179/Month when Billed Yearly.
Some top alternatives to Notion includes Jira, Knote, Trello, Confluence, Asana, Easynote, ClickUp, TWiki, MeisterNote and Zenkit Hypernotes.
Some top alternatives to Kanbanize includes Smartsheet, Miro, Process Street, Wrike, Notion, Jira, Trello, TeamGantt, GitScrum, Teamwork, Kaiten, SwiftKanban, Trackboard, Quick Base, ClickUp, Kanban Tool and Kanban Zone.