Product and development
Build
We design, build and run digital products the way we run our own: static-first, source-checked and verified automatically on every change.
What you get
Calculators and tools
Accurate, tested calculators and interactive tools, built from primary sources.
Content platforms at scale
Sites with hundreds or thousands of pages that stay consistent and correct.
Web apps
Offline-first apps and customer portals that respect privacy.
AI-assisted engineering
We set up the same agent-plus-verification workflow we use, for your team.
AI-ready products
MCP servers and APIs that let AI assistants call your tools and data directly, as Calculate.co.nz already does.
Applied AI in production
Assistants that answer questions from governed data in seconds, with the controls a finance or risk team will sign off.
How it works
Fractional
A set number of days a week or month, as part of your team, for as long as it is useful.
Fixed-scope project
A defined outcome, a fixed scope and a clear finish, such as a new tool, a site rebuild or a measurement plan.
Venture partnership
We build and run a product alongside a founder or domain expert, for equity or a reduced fee, on the same stack as our own products.
Contact
Tell us what you are working on.
A few lines is plenty: what you are building or measuring, where it is stuck, and the kind of help you have in mind.