TwelveVoltsCo
Premium SaaS Starters

Clean, deployable
app starters

Opinionated SaaS starters built for developers — modern stack, clear README, and a deployable baseline you can extend.

Stack focus: Next.js 16 · React 19 · Tailwind 4 · Node 20.x

Available Now

Modern stack, clear documentation, and a deployable baseline you can extend immediately.

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DraftLetter

AI newsletter generator starter. Generates structured newsletter drafts (subject, preheader, sections, CTA) from guided inputs. Clean Next.js codebase ready to customize and deploy. Three export formats included.

Next.js 16 + React 19 + TypeScript
Tailwind 4 + Shadcn UI components
Auth ready (Clerk/NextAuth)
Stripe billing integration
From
£145
View on Payhip
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BriefGrid

AI briefing workflow starter that converts messy meeting notes and call transcripts into structured, consistent briefings. BriefGrid is not another AI wrapper around a chat box. Config-driven schemas enforce your house style and output JSON for automation.

Next.js 16 + TypeScript + OpenAI SDK
4 predefined briefing schemas (JSON config)
House-style rules enforcement
Single API route, JSON output
From
£195
View on Payhip

More Starters Launching Soon

Additional production-ready starters in active development.

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Product Tiers and Typical Budgets

TIER 1 – STARTER TOOLS
£100-£500

Ready-made internal tools like DraftLetter and BriefGrid, sold as starters with full source code.

Typical starter pricing:
£100–£500 per starter.
Example: DraftLetter – From £145, BriefGrid – From £195

These are designed to be deployable and extensible in minutes, rather than starting from a blank repo.

  • Complete source code
  • Deployment documentation
  • Auth & billing placeholders
TIER 2 – CUSTOMISED INTERNAL TOOLS
£995–£1,995

From £995–£1,995 depending on scope and integrations.

These are usually built for a single company or small group of related clients.

  • Everything in Tier 1
  • Full auth integration
  • Complete billing setup
  • Database schema & migrations
TIER 3 – BESPOKE PRODUCTS / IP
£5k-25k

Larger, one-off B2B products with complex workflows, compliance requirements, and long-term ownership/operation by a single organisation. Scope determines pricing within range, integrations, and handover requirements.

  • Everything in Tier 2
  • Custom feature development
  • White-label branding
  • 90-day support & updates

Enterprise engagements and ongoing partnerships available – contact for discussion.

Built for Developers

Every starter is production-tested and ready to scale.

Clean Code

Well-structured, documented, and ready to extend. No technical debt.

Deploy Fast

From download to production in minutes. Vercel, Railway, or your preferred host.

Production Ready

Battle-tested patterns. Security best practices. Built to scale.