ClickUp is built for startups and small teams, with a focus on tasks and docs. GitBook targets developer teams and open source and leads with documentation and git-sync.

Both tools come in at similar price points ($7/mo for ClickUp, $6.7/mo for GitBook), so pricing won't make the decision for you.

Both offer free plans, so you can test each with your real workflow before committing to a subscription.

Feature-wise, ClickUp offers broader built-in capabilities (7 features vs 6), while GitBook takes a more focused approach — which can mean a simpler, faster onboarding experience.

Both tools are a solid fit for startups — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.

This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.