Slab vs Tettra Pricing (2026)

Which one is cheaper?

Slab starts lower at $6/mo, compared to $8/mo for Tettra.

Can I use either one for free?

Slab has a free plan. Tettra doesn't — though they do offer a free trial.

How do they charge?

Both use a per-seat model, so the comparison is straightforward — it comes down to features and limits at each price point.

Which one is a better deal?

Depends on what you need. Slab: Slab sits mid-pack against Notion, Confluence, and Guru — not fighting on rock-bottom price but not premium either, banking on being the 'clean, focused knowledge base' alternative rather than the cheapest seat in the room. The lack of a free trial (just a money-back guarantee) suggests they're leaning on the free tier to do the trial's job. Tettra: At $8/seat, Tettra sits mid-pack for wiki/knowledge-base tools — pricier than bare-bones docs tools but cheaper than heavier platforms like Guru or Confluence Premium once you factor in add-ons. The 10-seat minimum is the real story: it quietly pushes their effective floor price up, so they're not really courting solo teams or startups under 10 people.

Still deciding? See the best Slab alternatives or the best Tettra alternatives, ranked with verified pricing.