Custom Web App Development
We build web applications end to end: interface, API, database, deployment. You work directly with the engineers writing your code, and you see working software every week instead of a status report.
Most of our projects start from a rough idea or an existing product that has become hard to change. Either way we begin by agreeing on the smallest version worth shipping, then build outward from there.
Multi-tenant apps with authentication, roles, subscriptions and billing through Stripe or Paddle.
Admin panels, reporting views and workflow tools that replace spreadsheets and manual steps.
REST and GraphQL APIs, webhooks, and integrations with the CRMs, payment providers and data sources you already use.
Taking over a codebase that has stalled: audit, stabilize, add tests, then migrate piece by piece.
Step 1
You send us a description of the problem, the users and the constraints. We reply in writing with questions within one working day.
Step 2
Within a few working days you receive a scope, a timeline and a price broken down by feature.
Step 3
We build in one-week cycles. Each ends with a recorded demo and a version you can open and test yourself.
Step 4
We deploy to your accounts, document the system and either stay on for maintenance or hand over to your team.
Our own website
How we built hadesstudio.dev with Next.js on Cloudflare Workers: prerendered pages, structured data on every page and a contact form with no third-party email service.
Concept prototype
A concept prototype built in React and TypeScript to test a complete product flow, from upload to export, before any backend or AI integration was written.
It depends on scope. Once we understand your requirements we send a written estimate broken down by feature, so you can see what each part costs and cut what you do not need. We do not start work before you have approved that estimate.
A focused first version usually takes between six and twelve weeks. Larger products are split into phases so that something usable ships early and the rest follows in increments.
You do. Code lives in a repository under your account, and infrastructure is provisioned in your cloud accounts. Full ownership transfers on payment of each invoice.
Yes. We regularly join existing teams, follow their conventions and review process, and take on a defined part of the roadmap.
We work in written English. You get an update at the end of every working day and a recorded demo every week, so you can review progress at any hour. Questions are answered within one working day.
September 29, 2026
A practical way to estimate the cost of a custom web app: what drives the price, how to read a quote, and how to cut scope without hurting the product.
September 29, 2026
Fixed price and hourly contracts move risk in different directions. Here is how each one works, where each fits, and a middle option that suits most projects.
September 29, 2026
Notes from moving a Next.js site to Cloudflare Workers with OpenNext: the file system, prerendered pages, forms, email and static files, with the fixes we used.
September 29, 2026
A one-page software project brief gets you accurate quotes and fewer surprises. Here is what to include, what to leave out, and a template you can copy.
Service
Cross-platform and native apps for iOS and Android, including the backend and the store submission.
Service
RAG systems, AI agents and LLM-powered features integrated into the product you already have.
Tell us what you are building. We reply within one working day with next steps.