Solo
$0 / mo
Individual authors. Drafts, notation, signing — just one seat.
- Unlimited documents
- Inline and display LaTeX
- All core directives
- Local export and git sync
- Community support
Pricing
Flat pricing. No per-seat tax.
Three tiers. Solo is free for single authors. Team is flat per collaborator. Enterprise is a conversation. That’s the whole thing.
Team
$49 / mo
Up to 10 collaborators, working on the same documents in real time.
- Everything in Solo
- Real-time CRDT collaboration
- Review threads with anchors
- Shared templates and schemas
- Role-based permissions
- Email support
Enterprise
Custom
Legal and finance teams with compliance, SSO, and deployment requirements.
- Everything in Team
- SSO / SAML
- Self-hosted relay broker
- Custom document schemas
- Audit log export
- Dedicated support
Every tier includes
The full format. Always.
No tier gates Markdown, LaTeX, or the core directive set. Every document is portable, diffable, and readable. Paid tiers add collaboration, review workflow, and enterprise deployment — never restrict the format itself.
FAQ
Questions teams ask.
- Is my data portable?
- Yes. Every document is a plain-text .atto file. Export, clone, fork, or self-host the whole thing.
- Does Atto work offline?
- The editor runs fully client-side. Offline edits queue as patches and sync to the broker on reconnect.
- Do you offer self-hosting?
- The Enterprise tier includes a self-hosted relay broker deployable behind your firewall.
- Is Atto an AI product?
- No. Atto is a structured document platform. There is no generative AI in the signing or lifecycle path.