4.8
on G2
Common Questions
Q: Can I use HubSpot's knowledge base without buying the full Service Hub?
A: No. HubSpot's knowledge base feature is only available on Service Hub Professional ($450/month minimum for 5 seats) or Enterprise ($1,500/month minimum for 10 seats). There is no way to purchase the knowledge base as a standalone product. If you need only a knowledge base, you are paying for the entire customer service suite — ticketing, SLA management, surveys, and more — whether you use those features or not.
Q: Does Tettra's free plan have any meaningful limitations?
A: Tettra's free plan is capped at 10 users and excludes the Kai AI assistant, analytics, API access, custom branding, and SSO. For very small teams doing basic internal knowledge sharing with Slack, it is functional. However, most teams will quickly need the $4/user/month Basic plan to access Kai AI, or the $8/user/month Scaling plan to unlock analytics and API access — features that most documentation workflows depend on.
Q: How does HubSpot Knowledge Base pricing scale for larger teams?
A: HubSpot scales on a per-seat model at $100/seat/month on Professional and $150/seat/month on Enterprise, both billed annually. A 20-person team on Professional costs $2,000/month; on Enterprise it reaches $3,000/month. There is no workspace-based or flat-rate pricing, so costs grow linearly with headcount and can become very expensive for mid-sized organizations compared to alternatives with workspace pricing models.
Q: Is HubSpot Knowledge Base or Tettra better for customer-facing documentation?
A: HubSpot Knowledge Base is specifically designed for customer-facing documentation — it supports custom domains, multi-language content, CRM-linked analytics, and chat widget integration. Tettra is internal-only and has no customer-facing publishing capabilities whatsoever. If you need to publish help documentation that customers can access, Tettra is not a viable option. HubSpot KB serves this use case, but only if the $450/month Service Hub cost is justifiable for your organization.
Q: Which tool is better for a Slack-heavy team on a budget?
A: Tettra is purpose-built for Slack-heavy teams and offers native integration where the Kai AI assistant answers questions directly inside Slack channels from your knowledge base content. HubSpot only connects to Slack via third-party integrations. At $4/user/month for the Basic plan with Slack integration and Kai AI included, Tettra is the clear winner for teams whose primary collaboration happens in Slack and who need internal knowledge management on a tight budget.
Q: Is there a better alternative to both HubSpot Knowledge Base and Tettra?
A: Yes — Docsie addresses the major gaps both tools share. HubSpot KB cannot convert videos into documentation, has no multi-tenant portals, and costs $450/month minimum. Tettra is internal-only, has no video capabilities, no multilingual support, and no customer-facing delivery. Docsie converts any video (training recordings, screen captures, real-world footage) into structured knowledge bases, delivers through unlimited branded client portals, auto-translates into 100+ languages, includes a built-in LMS with certifications, and starts at $199/month for 15 users — with workspace-based pricing instead of per-seat fees. For teams that need both internal and external documentation with enterprise-grade AI, Docsie is the more complete platform.
Deep Dive Analysis
An in-depth analysis of value for money, scalability costs, and hidden limitations across both platforms.
The value equation for these two tools is dramatically different. Tettra delivers genuine value at $4–$12/user/month — you get a functional internal wiki with AI search, Slack integration, and content verification. The price matches what you receive. HubSpot Knowledge Base, however, bundles KB into a $450/month minimum Service Hub purchase. If you actually use HubSpot for ticketing, help desk, and CRM, that bundle may justify the cost. But if you want only a knowledge base, you are paying $450/month for a feature that represents perhaps 20% of what Service Hub Professional actually delivers. Pure KB value per dollar strongly favors Tettra.
Both tools scale in very different ways. Tettra's per-user model scales linearly — 50 users at $8/user/month on Scaling tier costs $400/month. That is predictable and manageable. HubSpot's per-seat model starts at $100/seat/month with a 5-seat floor, meaning even a 3-person team pays for 5 seats. At 20 seats on Professional, you are looking at $2,000/month — and Enterprise tier at $150/seat becomes $3,000/month for 20 seats. HubSpot's costs inflate rapidly as teams grow, while Tettra remains comparatively affordable. Neither tool uses workspace-based pricing, which tends to be more cost-effective at mid-market scale.
HubSpot's biggest hidden cost is the bundling tax — you cannot buy the knowledge base alone. Every team must purchase the full Service Hub Professional suite, including ticketing, SLA management, and customer feedback features they may not need. SSO being Enterprise-only adds another $50/seat/month premium over Professional pricing. For Tettra, the hidden cost is feature gating — the entry $4/user/month Basic plan excludes analytics, API access, and advanced permissions. Teams that genuinely need analytics to understand content performance must pay $8/user/month. Custom branding and SSO require the $12/user/month Professional tier. Both tools have meaningful capability gaps regardless of plan: neither offers video-to-docs, multi-tenant portals, or auto-translation.
Start creating professional documentation that your users will love