TwelvefoldLabs
Start a project

Custom software & web apps

When off-the-shelf doesn't fit, we build the tool.

Customer portals, internal tools, custom CRMs and SaaS MVPs, built on Next.js and Supabase on your own accounts. Every custom build starts with a paid discovery sprint, so you get a fixed quote based on a written specification, not a guess from one call.

What changes

The problem, and what we do about it.

Your process doesn't fit any product

We model your process directly: your data, your roles, your rules.

Spreadsheets have become the system

A real database with logins, permissions and an audit trail.

Customers keep asking for updates

A portal where they can see their own status, documents and numbers.

Previous builds never finished

Discovery first, fixed scope, weekly preview links, milestone payments.

What you get

Delivered, documented, yours.

  • Paid discovery sprint: process map, requirements, wireframes, fixed quote
  • Login, roles and permissions
  • Core screens, admin panel, reporting
  • Integrations with your existing tools
  • Automated tests and a review of every line before it ships
  • Source code and accounts transferred to you

Built with

  • Next.js
  • TypeScript
  • Supabase (Postgres)
  • Vercel
  • Stripe
  • Claude API

Accounts are created in your name. We're invited as collaborators, and we leave when you say so.

Prices

Three packages, fixed prices.

Launch prices, excluding taxes and third-party costs. Switch the market for your currency.

PackageBasicStandardPremiumTimeline
Custom CRM, internal tool or web appMVP$12,000£9,600€11,000PKR 650,000$20,000£16,000€18,500PKR 1,050,000$32,000£25,500€29,500PKR 1,650,0008–16 weeks
FeatureBasicStandardPremium
ScopeUp to ~160 developer hoursUp to ~260 developer hoursUp to ~400 developer hours
CoreLogin, roles, 4–6 core screens, admin panel+ reporting, notifications, audit log+ multi-tenant or mobile web app, advanced permissions
Integrations12–3As scoped, including data migration
SupportHypercareHypercareHypercare + service-level agreement

Where we've built this

We run this in LimoPilot.

Custom CRM & AI booking platform

LimoPilot

LimoPilot is a multi-tenant Next.js + Supabase platform with row-level security on every table, 18 modules and an analytics layer backed by 2,548 automated checks (counted August 2026).

Built and run in production. Our own limo company runs on it every day. No outside operator pays for it yet, and we say so.

Read the case study

FAQ

Custom software & web apps: questions

Why paid discovery?

Because nobody can quote a custom build honestly from one call. In one to two weeks you get a process map, requirements, wireframes and a fixed quote. You own those documents, and the fee is credited to the build if you go ahead within 30 days.

Who owns the code?

You do, on full payment. It lives in your GitHub, on your Vercel and Supabase accounts.

How do you use AI in development?

Claude drafts code and tests; a developer reviews every line before it ships and can explain it. No client personal data or secrets ever go into a prompt.

Get a quote

Tell us about your custom software & web apps project.

We reply within one business day with questions or a package recommendation, and a fixed price once the scope is clear.