Pricing

Start free. Add collaboration and control when you need them.

Solo includes the complete engineering workspace. Upgrade for live collaboration, organizational governance, and enterprise support.

Save 20%

Team and Business require two seats.

Struct plans

Solo

$0forever

All eight disciplines, linked specifications, offline work, and exports—with no trial clock.

  • 8 engineering disciplines
  • 1,200+ editable symbols
  • Linked specifications
  • Private and offline projects
  • Engineering exports
  • 5 daily agent prompts
Open Struct
Most popular

Team

$12per seat / monthbilled annually

Bring diagrams, specifications, reviews, and version history into one shared workspace.

  • Everything in Solo
  • Live diagrams and specifications
  • Roles and restricted project access
  • Reviewer links and anchored reviews
  • Cloud version history and restores
  • 50 daily agent prompts
Choose Team

Business

$29per seat / monthbilled annually

Add governed identity, access, retention, and audit history.

  • Everything in Team
  • Required OpenID Connect SSO
  • Verified domains
  • Just-in-time provisioning
  • Retention and audit history
  • Priority rollout and security review
Choose Business

Enterprise

Custom

Add tailored commercial terms, deployment review, and support.

  • Everything in Business
  • Volume agreements
  • Invoicing and commercial terms
  • Deployment and security review
  • Custom enablement and support
Contact sales
Included in
every plan

8disciplines

1,200+editable symbols

Linkedspecifications

Workoffline

Engineeringexports

Prices are USD per organization seat. Paid plans renew automatically at the selected monthly or annual interval until canceled. Annual plans are billed for the year. Seat changes are prorated, and Stripe manages invoices, payment methods, plan changes, and cancellation. See the Terms and Privacy Notice.

Included from Solo

Core engineering work belongs in every plan.

Every plan includes the editable canvas, eight discipline libraries, linked specifications, private offline work, and exports. Paid plans add shared workflows and organizational controls.

01

One workspace, eight disciplines

Move from software and cloud architecture to electrical, mechanical, and robotics work without changing tools.

02

Review without extra seats

Share expiring, revocable review links so stakeholders can inspect work without joining the organization.

03

Stay private until you are ready

Keep unlimited browser-local projects offline, then move into synchronized organization work when collaboration matters.

Compare plans

Choose the collaboration and control your work requires.

Every plan keeps the same engineering foundation. Team adds shared work; Business adds governance; Enterprise adds commercial support.

CapabilitySoloTeamBusinessEnterprise
Create
Editable engineering symbols1,200+1,200+1,200+1,200+
Professional disciplines8888
Private offline projectsIncludedIncludedIncludedIncluded
Linked specifications and engineering exportsIncludedIncludedIncludedIncluded
Agent prompts per user / UTC day5505050
Collaborate
Organization seats12+2+Custom
Live diagram and specification syncSingle seatIncludedIncludedIncluded
Roles and restricted project accessIncludedIncludedIncluded
Review links, anchored reviews, and version historyIncludedIncludedIncluded
Govern
Required OIDC SSO, verified domains, and JIT provisioningIncludedIncluded
Retention controls and organization audit historyIncludedIncluded
Support
Deployment and security reviewPriorityCustom
Volume agreements, invoicing, and commercial termsCustom

Pricing questions

What changes when you upgrade.

Can I use Struct for free?+

Yes. Solo includes one synchronized organization seat, unlimited private offline projects, all eight discipline libraries, linked specifications, imports, exports, and five project-aware agent prompts per UTC day.

Who counts as a paid seat?+

An organization member occupies a seat. Stakeholders who open a review link do not need to join the organization or consume a paid seat.

Why is there a two-seat minimum?+

Team and Business are built for shared work. Two seats establish the smallest collaborative organization while Solo remains complete for one person.

How does annual billing work?+

The displayed annual rate is the effective monthly price per seat. Team is $144 per seat per year and Business is $348 per seat per year, charged annually.

Can I change plans or seats later?+

Yes. Organization owners can change the plan and seat count from Plans & billing. Stripe prorates eligible changes and keeps invoices and payment methods in the customer portal.

What is the difference between Team and Business?+

Team is for live collaborative engineering. Business adds identity and governance needs such as enforced OpenID Connect SSO, verified domains, retention controls, audit history, and priority rollout support.

Start with the work

Build the first diagram.
Add the team when the work becomes shared.

No trial clock. No card required for Solo.

Open Struct