The Next App team builds applications that fit your business processes precisely. We keep things simple where possible and solve the complexity where it matters.
Technologies we use
Web applications
Off-the-shelf software rarely fits exactly how your organisation works. You adapt your processes to the software, rather than the other way around. With a custom web application that is reversed: the software follows your way of working, not the other way around.
We build web applications for a wide range of challenges: client portals, scheduling systems, admin panels, internal tools and complex platforms. Always with a clear architecture, so future development is straightforward and you do not get trapped in technical debt.
Middleware
Many organisations run multiple systems in parallel: an ERP, a CRM, an accounting system and their own tools. When those systems do not communicate with each other, manual steps, double data entry and errors arise.
We build middleware that connects your systems. Think integrations with AFAS, Exact, SAP or Salesforce, but also custom API integrations between systems that do not work together out of the box. Changes are automatically synchronised, so all systems are always up to date.
Custom software that truly fits.
Not you adapting to the software, but the software adapting to you. From user interface to integration with existing systems.
FAQ
A website presents information to visitors. A web application lets users do something: log in, enter data, place orders or generate reports. As soon as user input, authentication and business logic are involved, you are talking about a web application. Examples include a client portal, a scheduling system or a dashboard with real-time production data.
Web applications run in the browser and are platform-independent: users do not need to install anything and you manage everything centrally from the server. That also makes them easy to update: rolling out a new version is done in one place, and all users automatically see the new version.
We build the frontend with TypeScript and modern web standards. The backend runs on Node.js or NestJS, hosted on Google Cloud. For databases we choose depending on the project: PostgreSQL for relational data, Firestore for real-time applications.
We always build with a clear separation between frontend and backend via a REST or GraphQL API. That makes the application flexible: you can add a mobile app later that uses the same backend. For middleware we use Node.js with event-driven architecture, so integrations work reliably even when an external system is temporarily unavailable.
A simple web application starts from €10,000. A fully-featured platform with multiple user roles, system integrations and custom design can easily reach €30,000 to €80,000 or more. The price depends on the number of screens and workflows, the complexity of user roles, the desired integrations with external systems and the amount of custom design work.
We work on a fixed day rate and produce a detailed quote per phase, so you always know what you are getting and what it costs. After an intake meeting we give you a realistic estimate.
Yes. We have extensive experience integrating with AFAS, Exact, SAP, Salesforce and custom APIs. Middleware that automatically synchronises data between systems is one of our specialities. This prevents double data entry, human errors and manual data transfers.
During the intake meeting we assess which integrations are needed, which APIs are available and whether there are limitations on the side of the existing systems. Integrations can affect the price and timeline, depending on how well documented and accessible the external APIs are.
A simple web application is typically built in 6 to 10 weeks. A more complex platform with multiple user roles, integrations and extensive design takes 3 to 6 months. The preparation phase, from intake meeting to approved quote, typically takes 2 to 4 weeks.
We work in two-week sprints. After each sprint you receive a working version to test and provide feedback on. That prevents discovering at the end of the project that something works differently than expected, and keeps the timeline manageable.
We deploy on Google Cloud by default. After delivery we provide monitoring and can handle maintenance. Each quarter we issue an advisory report on recommended maintenance work: framework updates, dependency upgrades, security patches and performance improvements. You decide which to commission. There is no mandatory maintenance contract.
Keep in mind that deferring updates builds technical debt. The source code is entirely yours: you can also continue with another party if you prefer.
All frequently asked questions about web application development →
Let's grab a coffee. Tell us about your idea and we'll give you our honest take on what's possible.
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