Own EngiCalc.

What you'd own.

Every artifact below transfers to your accounts on day one. The whole engine.

• ●Brand identity, domain ownership, and logo files
• ●Live landing page with 12+ SEO-optimized guides
• ●Product specification and backend architecture documents
• ●SEO keyword research and content strategy playbook
• ●Customer financial model and pricing tier analysis
• ●Founder's raw market research and interviews

What Roll Digital builds for you.

Custom scope to take EngiCalc from MVP shell to operating business.

• ▸Production FastAPI backend with Postgres database and calculation engine
• ▸Stripe billing integration for $25/mo individual and $120/mo firm tiers
• ▸Multi-tenant authentication with email, Google OAuth, and role management
• ▸Custom domain provisioning with SSL certificates and production deployment
• ▸30-day customer success playbook and onboarding email sequences
• ▸PDF export with AI-generated calculation steps and built-in disclaimers
• ▸SEO infrastructure with keyword indexing and search console integration
• ▸Analytics dashboard tracking calculation usage and customer retention

Why this could work.

Focused GTM targets a validated pain: engineers need documented calculations for code compliance and to justify stamp-ready work. The 120k-engineer TAM is reachable via SEO on niche queries like 'beam deflection calculator with steps.' Free trial converts to $480/year per-engineer spend, confirmed by market research. Compared to bloated legacy tools like Mathcad, EngiCalc wins on simplicity and affordability.

What you'd risk.

Excel with comments is deeply entrenched; switching requires PEs to justify a new tool to partners and clients, introducing friction at sale. AI-generated explanations create legal liability risk: engineers may not trust or be permitted to rely on AI for code-compliant submissions without independent verification. Scope fragmentation is real: structural, MEP, and electrical PEs have radically different calculation needs, forcing expensive vertical-specific work before the product sticks anywhere.

Who this fits.

Best fit: a consulting agency owner or experienced SaaS founder who can hire sales talent and navigate the PE relationship dynamic. You need domain expertise or existing relationships in structural/MEP consulting to win trust early. Solo founders without industry credibility will struggle to overcome the switching-cost moat and liability skepticism. This requires founder-level effort in customer relationships, not just product work.

Timeline.

From contract signing to operating business.

1. Day 1
   Receive codebase, domain, and all founder research documents
2. Week 1
   Deploy first two calculation types to production
3. Week 3
   Launch Stripe billing and multi-tenant authentication
4. Week 6
   Publish SEO content and begin organic traffic growth
5. Day 90
   Public launch with initial customer cohort acquired

Pricing.

Three ways in, depending on how much you want to build yourself.