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Knowledge Base Software · Rank #7 of 10

Tettra review and pricing

Slack-native knowledge base for SMB teams.

By Tettra, Inc. · Founded 2015 · Cambridge, MA · private

Tettra is the cheapest credible internal knowledge base, optimized for Slack-first SMB teams under about 50 people. The Kai bot (Slack-native ask-and-answer) is the central workflow: an employee asks a question in Slack, Kai answers from your docs, and unanswered questions become content backlog. Pricing ($5-12/user/month) is the lowest in the category for a real KB. Trade-offs: capability narrows quickly above 50-100 employees, content-lifecycle and admin features lag larger competitors, and Tettra has had a quieter roadmap pace than Guru or Slab. Heretto explored a Tettra acquisition in 2024 though no public closure has been confirmed; procurement should ask about current ownership and roadmap.

Visit Tettra Vendor pricing Compare to Stack Overflow for Teams
Best for

SMB teams under 50-100 employees that live in Slack and want the cheapest credible internal KB, especially when Kai bot answering questions in Slack is the primary workflow.

Worst for

Mid-market and enterprise teams, customer-facing public help centers, or any organization that needs deep content-lifecycle, audit, or AI-search capability.

Vendor Trust Score

Is Tettra a trustworthy vendor?

7.5/10
Mixed
Pricing transparency
Published rates; no hidden fees
8.5
Contract fairness
Reasonable terms; no auto-renew traps
8.0
Incident response
How they handle outages and breaches
7.5
Post-acquisition behavior
Customer treatment after M&A or PE
7.0
Executive stability
Leadership churn over 24 months
7.0
Roadmap honesty
Public commitments held
7.0
Trust signal log
  • 2024-08-22
    Heretto reportedly explored Tettra acquisition; procurement should confirm current ownership and roadmap
  • 2023-11-15
    Kai bot launched offering Slack-native ask-and-answer over team docs
Vendor Trust is scored independently of product quality. A great product from an unfair vendor still earns a low trust score.
Review Intelligence

What 110 reviews actually say

Synthesized from G2, Capterra, Reddit, Trustpilot. Patterns >15% prevalence shown.

Last synthesized
2026-04-29

Praise patterns

  • Cheapest credible internal KB for Slack-first SMB teams
    71% →
  • Kai bot answering in Slack is the primary value
    64% ↑
  • Clean editor experience without overbuilt features
    47% →

Complaint patterns

  • Capability narrows above 50-100 employees
    41% →
  • Content-lifecycle and admin features lag competitors
    38% →
  • Roadmap pace slower than Guru or Slab
    31% →
Sentiment trend (6 months)
80/100 -2 pts
12
01
02
03
04
05
Patterns are extracted from review corpus and human-verified. We surface trends, not anecdotes.
Verified Pricing

What buyers actually pay

47 anonymized deal disclosures · last updated 2026-05-01

Contribute your deal price
Company size Median annual
5-25 users $1,200
25-100 users $7,200
Verified pricing is crowdsourced from buyers under anonymity guarantees. Vendor-listed prices are validated against actual deals quarterly.
Compliance & Security

Auto-verified certifications

Verified 2026-05-01
SOC 2 Type II
ISO 27001
HIPAA
GDPR
CCPA
PCI DSS
FedRAMP

Editorial: Strengths

  • Slack-native Kai bot for ask-and-answer flows; unanswered questions become content backlog
  • Cheapest credible internal KB ($5-12/user/month)
  • Clean editor and reading experience for SMB teams
  • Native Slack and Microsoft Teams integration
  • Page versioning and basic content workflows
  • Targeted at teams under 100; honest about its scope

Editorial: Weaknesses

  • Capability narrows quickly above 50-100 employees
  • Content-lifecycle and admin features lag Guru and Bloomfire
  • Smaller integration catalog than Atlassian or Document360
  • Quieter roadmap pace than Guru or Slab
  • Heretto explored 2024 acquisition; ownership and roadmap clarity is procurement-relevant
  • Not designed for customer-facing public help centers

Key features & integrations

  • +Slack-native Kai bot for ask-and-answer
  • +Page editor with versioning
  • +Content workflows and review reminders
  • +Native Slack and Microsoft Teams integration
  • +Basic analytics on page views and search
  • +Mobile-responsive reading experience
  • +Permissions and access controls
  • +Templates for common KB content
20+ integrations
SlackMicrosoft TeamsGoogle DriveGitHubZapierMakeOktaOneLoginGoogle WorkspaceNotion (import)Confluence (import)
Geography supported
Global; strongest North America
Best fit
5-100 employees · SMB teams living primarily in Slack
Editorial deep-dive

Read our full ranking of Knowledge Base Software

Tettra ranks #7 in our editorial review of 10 knowledge base software platforms. The deep-dive covers methodology, comparison tables, decision matrix, migration scoring, and FAQs.

Read the full ranking

Closest alternatives in Knowledge Base Software

#6
Stack Overflow for Teams
Private Stack Overflow for engineering team knowledge.
★ 4.5 public
#8
Slab
Modern team knowledge with the editor experience as the point.
★ 4.7 public
#5
Bloomfire
Enterprise internal knowledge with AI-search and content lifecycle.
★ 4.6 opaque
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