Fin vs Knowster

Fin

Fin is the most mature of the per-resolution support agents, with three years of production use and the tooling, simulations, regression tests, QA, that teams need before letting an agent touch refunds. The $0.99-per-outcome model is attractive when deflection is high and unattractive when the agent resolves little, and the definition of an outcome is what you negotiate over. Running it on Zendesk or Salesforce avoids Intercom's seat fees but imposes a 50-outcome monthly floor; small support teams with a few hundred tickets a month should model both before signing.

Pros

• +Pays per resolved outcome rather than per seat, with a published $0.99 rate (15 October 2026)
• +Works on Intercom and on Salesforce, Zendesk, HubSpot and Freshdesk
• +Can act through Procedures, APIs, data connectors and MCP, not only answer
• +Simulation, regression testing, QA and observability tools before and after changes go live
• +14-day trial with unlimited outcomes and no card

Cons

• −Outcome definitions and the $9.99 qualification charge make the effective price harder to model than a seat fee
• −50-outcome monthly minimum when used with a third-party helpdesk
• −Operator, Copilot and Voice are separate charges on top of the per-outcome rate
• −Company rebrand from Intercom to Fin in 2026 means documentation and contracts still carry both names

Knowster

A straightforward pick for a small business that wants a support widget trained on pages it already has, without a lengthy setup. The catch is it's a one-developer product with no disclosed company behind it, so there's no visible track record for support or uptime guarantees.

Pros

• +One-line install with automatic re-training when pages change
• +Answers in the visitor's language regardless of source content language
• +Free tier with no credit card required
• +Lead capture built into the chat flow

Cons

• −Built and run by a single developer with no company entity disclosed
• −White-labeling is locked behind paid tiers
• −No API or integrations beyond the chat widget itself

Is Fin cheaper than Knowster?

They charge in different units, so there is no like-for-like answer: Fin starts at $0.99/request, Knowster at $39/mo. Entry price is the lowest paid plan as we last verified it.

Does Fin or Knowster have a free tier?

Knowster has a free tier; Fin has paid plans only.

Which has a public API, Fin or Knowster?

Fin ships a public API, as of our last verification. A public API for Knowster is not confirmed by us — check its developer docs before you plan an integration.