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Services

Custom Web Application Development

Internal tools, customer portals and business applications built to your specification, with an MVP first and full ownership of the code.

Every business runs on a few processes that no off-the-shelf product handles well. Sometimes it is how orders come in, sometimes how quotes are calculated, sometimes how staff, clients and documents are coordinated. When that process lives in spreadsheets, e-mail threads and messenger chats, it works until the day it does not.

Coding Moose builds custom web applications for small and medium businesses that have outgrown those workarounds. We are a software company in Krakow, Poland, working with clients in Germany, Austria, Switzerland, Poland and the United States, and we specialise in tools that replace manual work rather than software for its own sake.

What we build

Web applications come in many shapes. The ones we build most often are:

  • Internal tools and admin panels. Case management, staff scheduling, inventory tracking, approval workflows: the systems your team uses all day.
  • Customer portals. Places where your clients log in to upload documents, check progress, book, order or pay, so your inbox stops being the portal.
  • Ordering and quoting systems. Configurable products, price calculations, order tracking and payment, tailored to how you sell.
  • Dashboards and reporting. One screen with the numbers that matter, pulled from the systems you already use, with exports and scheduled summaries.
  • Line-of-business applications. The specific thing your industry needs that nobody sells as a product.

If your need fits one of our productised solutions, we will tell you. A custom CRM, a booking system, an online shop or workflow automation each has a fixed starting price and a clear scope. Custom web applications are for everything in between.

Examples of custom web applications we have delivered

The Place, a restaurant and cake business in Poland, was taking orders through Instagram messages and phone calls. Messages were missed in busy hours and lost entirely after closing. We built an online ordering application with a menu, customisable products, delivery scheduling, Apple Pay, Google Pay and BLIK payments, and an admin panel for the team. Order handling dropped from up to 15 minutes to under 30 seconds, and the business captures about 30% more orders because customers can order at any hour. See the The Place case study.

Jo&Co Recruitment in Germany needed a focused case-management application for a regulated program. We designed and launched it in three weeks; audit documents that used to take two hours now generate in about three seconds. Read the Jo&Co case study.

Our approach: MVP first, then iterate

The most expensive software is the software that was built and never used. We avoid that with a simple rule: launch the smallest version that removes real work, then extend it based on what people actually do.

  1. Discovery call. A free thirty-minute conversation about the process you want to fix. We ask for the current spreadsheets and screenshots, not a specification.
  2. Planning workshop. We define the core workflow, the data model, the integrations and what is explicitly out of scope for the first version. You receive a written scope, a fixed price and a timeline.
  3. Weekly iterations. Every week you see a working increment and can try it with real data. Course corrections happen when they are cheap.
  4. Launch and handover. We deploy, train your team and hand over the source code and documentation.
  5. Phase two, if it earns its place. Once the MVP is in daily use, the next features are obvious and easy to prioritise.

Technology built to last

Our core stack is React, Next.js, TypeScript, Node.js and PostgreSQL, hosted on AWS in EU data centres; for mobile we use React Native. We choose these because they are stable, well-documented and easy for any competent developer to pick up, which protects you from depending on one vendor. Hosting for most small-business applications costs a few dollars to a few tens of dollars a month, in an account you control.

Performance, accessibility and security are part of the build, not an add-on: fast load times on mobile, keyboard-accessible interfaces, encrypted data in transit and at rest, and role-based access from day one.

What you get at handover

At the end of the project you receive the full source code in a repository you own, the database, the deployment configuration, written documentation for your team and a short handover session. If you later decide to work with another developer, they can pick the project up without asking us for anything. Most clients still choose a maintenance package for updates and new features, but that is a choice, not a requirement.

Pricing and next step

Custom web applications are quoted per project because scope varies. For orientation, our fixed-price solutions on the pricing page start at €3,900 for a focused tool and €6,900 for a CRM or online shop, and most custom MVPs land in a comparable range. Every quote includes design, development, testing, deployment and full source code handover.

Describe your idea in a few sentences and we will come back within a few days with a written scope, a fixed price and a timeline, with no obligation.

Related case studies

Frequently Asked Questions

Anything your team or customers log in to and work in through a browser: an internal admin tool, a customer portal, an ordering system, a scheduling app, a quoting calculator. Unlike a marketing website, a web application stores and processes your business data and replaces manual work.

Not sure which solution fits?

Tell us what slows your team down today. You get a written scope, a fixed price and a timeline within a few days, with no obligation.