One-time purchase. Not a subscription.

Pay once. Every platform. No renewal, ever.

The free tier is a real product — no time limit, no nag, no account.

Free

$0
  • Full editor, live preview, Mermaid, math, highlighting
  • Wiki-links, backlinks, tags, daily notes
  • Multi-hit ranked search
  • Automatic git version history — including restore
  • Imported themes and CSS snippets
Download free

Pro

Founding price
$39 $69 founding price · one-time, all platforms
  • Sync via your own git remote + end-to-end encryption
  • AI assistant, any provider — including local
  • Citations and bibliography
  • Visual timeline + side-by-side diff
  • Knowledge graph, Ghost publishing, PDF export
Buy Pro Licence

Founding price ($39) is grandfathered permanently for early buyers before standard list price ($69) takes effect. One licence covers all platforms with perpetual offline verification. Education pricing: 40% off standard, institutional verification required.

Proposed — needs sign-off

Team licences

Reassignable seats, one invoice, same one-time-and-perpetual terms as an individual licence — a team is a quantity, not a different product.

Discount tier
Per seat
Total

Reassign a seat any time. Because Tessamark verifies licences offline — so it keeps working with no internet and no login — a reclaimed seat stops working on the previous device at its next licence check, not instantly.

Free vs. Pro

Version history and restore are free. Pro sells the presentation of that history, never access to it.

CapabilityFreePro
Editor, live preview, Mermaid, mathIncludedIncluded
Wiki-links, backlinks, tags, daily notesIncludedIncluded
Git version history + restoreIncludedIncluded
Sync via your own git remote + E2E encryptionNot includedIncluded
AI assistant (any provider, incl. local)Not includedIncluded
Citations and bibliographyNot includedIncluded
Visual timeline + side-by-side diffNot includedIncluded
Knowledge graphNot includedIncluded
Ghost publishing, PDF exportNot includedIncluded
Async collaborationNot includedIncluded

FAQ

Is it really one-time?

Yes. Tessamark runs no service, so there's nothing recurring to sell you. Major versions (v2+) are an optional upgrade at 50% of list.

Why bring-your-own-key for AI?

Your prompts go to your provider on your credential. We never see them or bill you for them. Works with local models too.

What if development stops?

Your files are plain markdown and your history is a standard git repository. Both outlive us.

How do I reclaim a departed teammate's seat?

Reassign it in the portal. It stops working on their old device at its next offline licence check, not instantly.