Knowledge Base Software · true cost · Updated September 2026
The true cost of knowledge base software
What you'll actually pay. Of the 8 knowledge base software tools we track, 2 publish no self-serve price (quote-only), 1 price on a basis this column cannot carry. 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: 2 of 8 are quote-only (contact sales).
- Not priced monthly: 1 publish a figure on another basis — usage rates, non-USD, or annual-only.
- Cheapest published: Nuclino from $6/mo.
- No overage or setup fee: Nuclino, Slite, Tettra, 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 | — | — |
| Slite | $10/mo | — | — |
| Tettra | $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 2026-09-02. "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: 2 publish no self-serve price (quote-only), 1 price on a basis this column cannot carry. As of 2026-09-02.
What is the cheapest knowledge base software with published pricing?
Nuclino, from $6/mo. Verified 2026-09-02.
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