Cairn Labs · Services · Apps

Apps built to last.

We build consumer products people return to — not because they have to, but because they actually want to. Considered from the first tap through to a daily habit that quietly fits into someone's life.

Our apps

Multiple products, one standard of care.

Each one starts with a real problem — something we've noticed is missing, poorly solved, or deserving of more attention. Then we build it the way we'd want to use it ourselves.

Data Q&A
B2B · Live

Ask your Power BI model anything

Plain-English questions converted into DAX and answered directly from your Power BI semantic model — no SQL, no analyst bottleneck, no numbers invented. Built for merchandising, commercial and finance teams who need fast answers from their data without waiting for a report.

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Cairn
Live

Every mountain, every memory

Track the UK peaks you've climbed, log each ascent with notes and photos, and watch your personal map fill in. Built for Munros, Corbetts, Grahams, Donalds and beyond — a quiet, personal place to keep the hills you've collected over a lifetime of walking.

Open Cairn
Mari-Gold
In development

Memory-keeping & legacy

An older generation has stories worth keeping — but they rarely get written down. Mari-Gold guides them through it with gentle voice-led prompts, building a living memory archive over time. No typing required. At the end, a keepsake book to hold and pass on.

Coming soon
Pippin
In development

A pet's story, kept

A pet's life goes by fast. Pippin is a loving home for the photos, videos, quirks and stories that make your companion theirs — gathered gently over time and shaped into something you'll always have long after they're gone.

Coming soon
How we build

The same principles, every time.

We're a small studio. That means every decision gets made deliberately, and nothing ships until it feels right.

Start with people

Every app starts with a real person and a real moment. Who is it for? What are they actually doing? What does it feel like to use it at the end of a long day? Technology comes last.

Built for the long run

We build for habits, not sessions. That means performance, offline resilience, careful notifications and respecting people's attention — not optimising for time-in-app.

Privacy by default

Your data is yours. We collect what we need to make the app work and nothing else. No selling, no ad targeting, no dark patterns designed to extract more than you'd willingly give.

Tech stack

Modern, considered, and built to ship.

A lean stack chosen for performance, developer experience and longevity — not trend-following.

Frontend

TypeScript TanStack Start React Tailwind CSS

Backend & runtime

Bun Node.js tRPC

Data & auth

Supabase PostgreSQL Row-level security

Deployment

Vercel Edge functions SSR

Mobile & PWA

Capacitor PWA App Store Play Store

Payments

Stripe Freemium Annual subscription

Got an app idea worth building?

We're a small studio so we're selective about what we take on. But if the problem is real and the care is there, we'd love to hear it.

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