Guru, founded in 2013, builds a company knowledge base around a specific trust mechanism most wiki tools skip: individual knowledge cards get verified by a designated subject-matter expert, and that verification expires after a set period, prompting a re-check rather than letting outdated information sit indefinitely and quietly go stale.
That verification workflow addresses a common wiki problem directly: most internal documentation tools have no mechanism forcing anyone to confirm information is still accurate, so old, wrong answers accumulate right alongside current ones with no way to distinguish them. Guru's expiring verification keeps that distinction visible and enforced rather than optional.
A free tier covers small teams, and paid plans start around $15 a month for more users and features. For an organization specifically concerned about stale, unverified information accumulating in its internal knowledge base, Guru's expert-verification-with-expiration model addresses that trust problem more directly than a wiki tool with no built-in accuracy-checking mechanism.
