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Custom web application development

Apps that your customers or staff log in to, such as MVPs, SaaS products, dashboards and customer portals. Each phase has a fixed price.

  • From $5,000
  • Fixed price for each phase
  • A reply within one business day
  1. Tell us what you need

    Use the form or call. A few lines about your business and the job are enough.

  2. A scoping call and a plan

    We split the work into phases and give each phase a fixed price.

  3. Build one phase at a time

    You approve each phase before the next one starts.

From$5,000Fixed price for each phase after a scoping call

Custom web application development starts where a regular website stops. Customers need to log in, book and pay, see their own data or use a tool you offer. Or you have a startup idea and need a working product in front of real users.

We design and build the whole app, from the first sketch to the live product. You know the price of each phase before work on it starts.

What we build

  • MVPs for startups. The smallest version of your product that real users can try, built in weeks.
  • SaaS products. User accounts, subscriptions and billing, admin areas and the features your customers pay for.
  • Dashboards and internal tools. Replace the spreadsheet everyone is afraid to touch with a proper tool your team can use.
  • Customer portals. Let clients log in to see their orders, documents, invoices or project status.
  • APIs and integrations. Connect your systems, such as your CRM, accounting software, booking tool or payment provider.
  • AI features. Assistants that answer from your own documents, search that finds the right page when the words differ, and tools that draft, sort or summarize. We also build AI agents that carry out tasks.

The technology

We work mainly in TypeScript across the whole stack:

  • Frontend. React and Next.js for apps, and Astro for marketing pages.
  • Backend. Node.js APIs, background jobs and webhooks.
  • Data. PostgreSQL, Supabase or other hosted databases, with backups.
  • Payments and accounts. Stripe for billing, and logins with email, Google or single sign-on.
  • Hosting. Cloudflare, Vercel or your own cloud account, with monitoring and error alerts.

We build every layer, so a change to a feature reaches the screens, the server and the database together. See full stack development.

We choose boring, well-supported tools on purpose. Your product should not depend on a niche framework that only one developer understands.

How a project runs

  1. Scoping. A workshop to agree on who the users are, what they need to do, and what the first version must include.
  2. Plan and price. A written plan, split into phases, with a fixed price for each phase.
  3. Build in phases. You try the working software and approve each phase before the next one starts.
  4. Launch. We deploy to production, set up monitoring and write documentation.
  5. After launch. We make fixes and small features at $60 an hour, and quote larger features as a new fixed-price phase.

Web app and product development

MVPs, SaaS products, dashboards, APIs and AI features, built in React, Next.js and Node.js. Custom web apps start from $5,000, with a fixed price for each phase.

Built with

  • TypeScript
  • React
  • Next.js
  • Node.js
  • Astro
  • PostgreSQL
  • Supabase
  • Stripe
  • Cloudflare
  • Vercel
  1. MVP development

    We help founders turn an idea into the smallest product real users can try. Then we plan the next phase from what those users do.

  2. SaaS development

    We build software that customers log in to and pay for every month, with team accounts, Stripe billing, roles and an admin area for your staff.

  3. Dashboards

    Charts, reports and internal tools built on the data you already have, so your team stops copying numbers between spreadsheets.

  4. React

    We build React apps, dashboards and customer portals in TypeScript. We also fix and modernize React code that someone else started.

  5. Next.js

    We build Next.js apps that load fast and that search engines can read. We also upgrade older Next.js apps to the current version.

  6. Node.js

    We build the backend of your product in Node.js and TypeScript. That covers APIs, background jobs, webhooks, integrations, databases and logins.

  7. Full stack

    We build your whole web app, from the screens to the database and the servers. You deal with one company for every part of it.

  8. APIs

    We build APIs for your app and your partners, and we connect the business tools you already use so data moves between them on its own.

  9. AI integration

    We add large language models, the type of AI behind ChatGPT, to the website, app or workflow you already have. We start with a small test on your own data.

  10. AI agents

    We build AI assistants that look things up and take actions in your systems, with a person approving the risky steps.

Questions people ask

Can't find your answer? Ask us directly.

How much does a custom web app cost?

Custom web apps start at $5,000, and the final price depends on the features. A full SaaS product with accounts, billing and an admin area costs more than a small internal tool or a focused MVP. After a scoping call you get a fixed price for each phase, so you know the cost before work starts.

Which technologies do you use?

Mostly TypeScript, React, Next.js and Node.js, with PostgreSQL or a hosted database such as Supabase. For content-heavy sites we use Astro. We pick the simplest stack that does the job and that another developer can pick up later.

Can you build an MVP for my startup?

Yes. We help you cut the idea down to the features you need to test with real users, build that version first, and plan the next phase from what those users do.

Do I own the code?

Yes. The code lives in your own repository and belongs to you once the project is paid. We write documentation so any developer can continue the work.

Can you add AI features to an existing product?

Yes. Common examples are a support assistant that answers from your help articles, a search box that understands meaning, and tools that draft or summarize text. We start with a small test to check the feature is worth building.

Can you work with my existing developers?

Yes. We can take on a defined part of the project, review code, or help your team ship a feature faster.

Get a fixed price for your project

Send a few lines about your business and what you need. We reply within one business day with questions or a fixed price.

Project assistant

A few questions, then your answers come to us.

Hi. What does your business do, and what would you like us to build?