Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Guideblocks - Guideblocks extends your web app to provide help articles, user onboarding tours, context help...
Clientflow - Project Management & Shared Inbox for Client Service teams
Appcues - Improve user onboarding, feature activation & more — no code required! Stop waiting on dev and start increasing customer engagement today. Try it for free.
Lunyr - A decentralized crowdsourced encyclopedia.
UserGuiding - User onboarding made easy, for less. Create product walkthroughs in a couple of clicks, without breaking the bank.