The Next App builds mobile apps and web applications for Amsterdam startups, scale-ups and established businesses. You work with a dedicated in-house team, fifteen minutes away by train.
From €10,000 · Lead time 2 to 6 months · No-obligation introductory call
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10+ years of experience
From Amsterdam startup to national organisation: we built apps for Spotted by Locals, Incision, Medimo and more.
Flutter specialist
One codebase for iOS and Android, so lower costs and shorter lead times at the same quality.
Remote-first way of working
From Rotterdam we work with clients all over the Netherlands every day, online or on-site, whichever you prefer.

Why us
Looking for an app developer in Amsterdam? We guide the full process from first sketch to publication in the App Store and Google Play: technical advice, design, development, testing and maintenance after launch.
Our office is on the Westblaak in Rotterdam and the train to Amsterdam takes fifteen minutes, so we are there when it matters. The rest of the time we work the way most Amsterdam clients prefer: fixed contact moments, a demo after every round and one point of contact who knows the project inside out.
What we build
Amsterdam has one of the liveliest startup and scale-up scenes in Europe. That brings its own pressure: moving fast, keeping budgets tight and shipping a product that works from day one.
We build cross-platform apps with Flutter: iOS and Android from a single codebase. That saves on development time and maintenance, and you keep a single team at the wheel. Only need an iOS app, or would you rather start with Android? We advise on that per project.
Not every problem calls for an app in the store. For a customer portal, a dashboard or an internal tool we build a custom web application, hosted on Google Cloud so it scales with you. We take care of the backend and APIs ourselves, so all the technical work stays with one team.
Many clients are not looking for a consumer app but for a business app that speeds up an internal process: taking orders, recording inspections or supporting staff in the field. That is the type of app we build most often, and it pays for itself in hours saved.
Validating a first idea asks for something different than expanding an existing system. We adapt our approach to your phase and give honest advice on scope and costs. Sometimes that advice is to start smaller.
A great app also needs to be found. We advise on App Store optimisation so your app is discoverable from day one on the keywords that matter to your audience.
View examples →

Get started
An introduction can take place at your office in Amsterdam, at ours in Rotterdam, or simply over a video call. You decide what works best.
Tell us what you have in mind and we will give you an honest view of what it costs, how long it takes and whether the idea is worth building in this form, or whether you are better off starting smaller.
Schedule a no-obligation call →Previous work
FAQ
Yes. We work for clients throughout the Netherlands, and we regularly have projects running in Amsterdam. Most of it happens fully remotely, via video calls, email and our project environment, with a dedicated contact person who monitors progress and gives you a demo after every round.
Prefer to meet in person? Then we come to Amsterdam, or you visit us on the Westblaak in Rotterdam.
Our office is at Westblaak 33 in Rotterdam, fifteen minutes away by train. We deliberately do not run a second branch in Amsterdam: we would rather keep one dedicated team in one place than spread offices with rotating staff. That is why you always have the same developers on your project.
It changes little for you. We travel to Amsterdam for introductions, workshops and any moment where meeting face to face helps, and in between we work with fixed contact moments and a demo after every round. You are always welcome on the Westblaak as well.
Yes. Alongside mobile apps we build custom web applications: customer portals, dashboards, planning tools and internal systems that run in the browser. For many problems that is the better choice than an app in the store, certainly when your users sit behind a desk or when you want to ship updates without an Apple or Google review.
We develop with Angular and NestJS and host on Google Cloud so it grows with your business. Read more about having a web application built, or bring your case to an introductory call. We will tell you honestly whether an app, a web application or a combination delivers the most.
That is the largest part of our work. Think of apps that let staff record inspections on location, take orders or handle their work orders, often connected to systems you already use. These apps rarely have thousands of users, but they do save hours of manual work every week.
We build them for Amsterdam scale-ups and larger organisations alike. Read more on our page about having a business app built.
The cost depends on the complexity, the platform and the number of features. A first version with core features only (MVP) starts from €10,000 and a basic Flutter app from €15,000; a platform with multiple user roles, a backend and external integrations can quickly reach €30,000 to €60,000 or more. We primarily build with Flutter, which lets us develop iOS and Android from a single codebase. That is cheaper than two separate native apps.
After a no-obligation introductory call you get a quote per phase, with a clear price for each step.
Yes. We built the Spotted by Locals app, a travel guide for locals in cities including Amsterdam, and the Incision Academy platform for Amsterdam medtech startup Incision, an e-learning platform for surgeons used worldwide. For Medimo, a medication management platform in healthcare, we built an app, and for the Dutch Banking Association a stakeholders app.
All of these started with a no-obligation conversation. The full portfolio is on our cases page.
Remotely, with the short lines you would expect from a local partner. We work with fixed contact moments, weekly updates and a demo after every round, and a shared project environment shows you the planning and progress at any time. That way you always know where the project stands and can steer when needed.
Meeting in person is always possible: we regularly travel to Amsterdam, and you are welcome at our office in Rotterdam.
Yes, just as we do with larger organisations. For startups we think along about what belongs in the MVP: which features do you need to validate the concept, and which can wait? The shorter that list, the less budget goes to features the end user may not need at all.
An MVP starts at €10,000 and can go live within two to three months. A rough idea is enough to start with: we work it out together in an intake call.
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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