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Web App Development · York · Canarlo, Leeds
Web app development for York, 25 minutes from Leeds. Booking and reconciliation apps for the visitor economy; case-management and compliance-tracking apps for insurance, rail, and bioscience firms. From £12,500.
Working in York
York's visitor-economy operators lose money to booking systems that don't talk to each other — reconciliation done by hand, availability out of sync across channels. We build web apps that fix that: one source of truth for bookings, staffing, and pricing, built to survive a seasonal traffic spike without falling over.
The regulated side of York — insurance, rail, bioscience — needs the opposite emphasis: audit trails on every automated action, DPIA-shaped data handling from the architecture phase, and a compliance team that gets the artefact they ask for instead of a promise.
On-site from Leeds
York is 25 minutes from Leeds by train — closer than most of Leeds is to itself in traffic. Kickoff at your office, architecture reviews in person, and same-week availability for anything urgent. No travel charges within Yorkshire.
Delivery itself runs remote-first — weekly demos on a real preview URL, readable diffs, UK office hours. The engineer who writes the proposal writes the code and takes the call when something breaks.
What you get
The full detail — scope, process, pricing — lives on the service page. It covers the whole of the UK; /services/web-apps is the place to start.
The key user journey — whatever makes the product useful — built and tested on real data. Not a mockup.
Sign-up, sessions, password reset, TOTP. Per-row security enforced at the database, not just the UI.
The one capability that makes the product worth building, built as a first-class part of the system.
Your Vercel account, your Supabase project, your keys. We deploy and walk off — no agency-held infrastructure.
MVP / Web App from £12,500. Fixed scope, GBP invoicing, no day-rate dance.
See full pricing →Frequently asked
A prototype proves the concept; an MVP proves the business. What we build is production-grade — real auth, real data model, real security — not a throwaway you rebuild once it gets traction.
You do. Your repo, your Vercel account, your Supabase project, your keys. No Canarlo SaaS in the loop. The handover doc names every environment variable, cron job and integration.
Start with discovery — two weeks, fixed fee. One scoping call, a written brief, the load-bearing pieces named and the failure modes mapped before anything is built.
Yes, if it's architected for it from the start — that's a discovery-phase question we ask explicitly for York clients. Job queues, rate-limited third-party integrations, and load-tested booking flows before go-live, not discovered the first time it actually spikes.
Start here
Twenty minutes, UK office hours. If the work fits, we’ll say so. If a different service on this site fits better, we’ll say that too.