Knowledge Base Software · true cost · Updated June 2026
The true cost of knowledge base software
What you'll actually pay. Of the 8 knowledge base software tools we track, 3 publish no self-serve price (quote-only). Here's every tool's entry price and its hidden-cost flags — each linked to its sourced record.
The hidden-cost picture
- No public price: 3 of 8 are quote-only (contact sales).
- Cheapest published: Nuclino from $6/mo.
- No overage or setup fee: Nuclino, Tettra, Slite, Notion, ….
As of · re-verified with each catalog refresh
Knowledge Base Software — entry price & hidden-cost flags
| Tool | Entry price | Usage overages | Setup fee |
|---|---|---|---|
| Nuclino | $6/mo | — | — |
| Tettra | $8/mo | — | — |
| Slite | $10/mo | — | — |
| Notion | $12/mo | — | — |
| Helpjuice | $249/mo | — | — |
| Document360 | Quote-only | — | — |
| Guru | Quote-only | — | — |
| Slab | Quote-only | — | — |
Prices and fee terms re-verified with each catalog refresh. Last catalog update 2026-06-15. "Quote-only" means the vendor publishes no self-serve price.
Frequently asked questions
Does knowledge base software have hidden fees?
Across the 8 knowledge base software tools we track: 3 publish no self-serve price (quote-only). As of 2026-06-15.
What is the cheapest knowledge base software with published pricing?
Nuclino, from $6/mo. Verified 2026-06-15.
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