// Service · Wales

Web App & SaaS Development in Cardiff

Next.js 16 (App Router) with TypeScript strict, Tailwind, server components, Supabase Postgres + Auth, Stripe Checkout and Customer Portal, Resend for transactional email. We design and ship the marketing site, the authenticated product surface, and the internal admin panel as one cohesive system.

Start a Cardiff project Full SaaS & Web Platforms detail

Why Cardiff businesses pick BozApps for saas & web platforms

Cardiff is Wales's fastest-growing tech and digital hub. BozApps works with Welsh businesses and public-sector teams on bilingual (English/Welsh) web platforms, mobile apps and geospatial tooling, with fixed pricing and Welsh-language accessibility built in.

Bilingual EN/CY content delivery where required

Welsh public-sector accessibility (WCAG 2.2 AA + WLA 1993)

Used to Welsh procurement and grant-funded delivery

Non-London pricing for Welsh SME budgets

Good for Cardiff…

Subscription research and intelligence platforms
Multi-tenant B2B SaaS
Industry-specific data dashboards
Internal operations tools

What you'll get

Marketing site + authenticated product on a single Next.js codebase
Postgres with row-level security and audit trails
Stripe Checkout, Customer Portal, webhook reconciliation
Custom admin panel with RBAC
Transactional email pipeline (Resend) with templates

Shipped examples

Real saas & web platformsprojects we've delivered for UK clients.

H2 Intel

A research platform tracking the global hydrogen economy.

Deen Path

A gentle Quran and Islam learning companion for beginners.

Pulat Estates

A modern website for a London estate agent.

Questions Cardiff businesses ask us

Straight answers, real numbers. Anything else — ask on a 30-minute call and you'll have a written proposal within five working days.

How much does a SaaS platform cost to build?

A first version with logins, subscription billing and an admin panel typically runs from £25,000 to £60,000 over 10 to 14 weeks. We scope the smallest launchable version first, which keeps the upfront number down.

What stack do you build on?

Next.js with TypeScript, Supabase Postgres with row-level security, and Stripe for billing. The marketing site, the product and the admin panel ship as one system, so there's a single codebase to run and extend.

Can you work with a Cardiff business remotely?

Yes — we're remote-first with clients across Wales and the UK. Weekly demos on a private preview URL mean you see the real product every week, not a slide deck.

Who owns the platform?

You do — code, data and accounts are all registered to your business. There's no lock-in and nothing to buy back if you ever move on.

Who runs it after launch?

Either your team, or us on a monthly retainer: hosting, uptime and error monitoring, security patching, daily backups and a feature increment each month, from £20 to £500 a month depending on usage.

Want the plain-English version of how an engagement works? Build a SaaS platform — scope, timeline and pricing

SaaS & Web Platforms in other UK cities

Other services in Cardiff

Based in Cardiff? Let's scope your saas & web platforms project.

30-minute call. Written proposal within five working days. Fixed price wherever the scope allows.

Start a project semir@bozmaps.com