In Haarlem, media companies and consumer brands build their apps with The Next App. Our team in Rotterdam works for clients in the Haarlem and North Holland region, with the same developers throughout and no outsourcing.
From €10,000 · Lead time 2 to 6 months · No-obligation introductory call
Companies that trust us









10+ years of experience
Extensive experience with B2B platforms, media apps and customer-facing applications: sectors well represented in the Haarlem region.
Flutter specialist
We were one of the first Dutch agencies to work with Flutter. With one codebase we deliver your app for both iOS and Android.
Dedicated contact person
From the first conversation to launch, you work with the same developers.

Why us
In Haarlem and the broader North Holland region, you'll find media companies, creative agencies and retailers. We build apps that match those audiences: from consumer apps and booking platforms to internal business apps and B2B portals.
Our office is at Westblaak in Rotterdam. Most of the contact happens remotely, with fixed contact moments and demo sessions. For an introductory meeting we come to Haarlem, or you drop by our office.
Our approach
For a consumer app or booking platform we handle the design, the integrations and maintenance after launch as well as the build.
Who will use the app: consumers, customers, employees or business users? We shape the design around them.
With Flutter we build a single codebase for iOS and Android. That is cheaper and faster than building two separate apps, at the same quality.
We connect the app to your existing software: CRM, booking systems, payment providers or your own APIs. Everything runs on Google Cloud by default.
After launch you can still come to us for updates, new features and performance improvements.


Get in touch
Most of the work runs remotely, through fixed sprint sessions, demo calls and Slack. If you prefer to meet, we come to Haarlem or see you at Westblaak 33 in Rotterdam.
Prefer to call directly? 010 307 6100
Schedule a no-obligation call →Previous work
FAQ
Yes. We work across the Netherlands, and Haarlem and the North Holland region are well represented in our client base. From our office in Rotterdam we mostly work remotely, with fixed contact moments and a demo after every development sprint.
For an introductory meeting or working session we come to Haarlem. You can also visit us at Westblaak 33 in Rotterdam.
Location has no effect on the price. 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 integrations can quickly reach €30,000 to €60,000 or more. We build with Flutter, which lets us develop iOS and Android from a single codebase.
After a no-obligation introductory call you receive a quote with the price per phase.
Yes. We built the Spotted by Locals app, a city guide used by travellers worldwide with recommendations from locals, and the Casterbee booking platform for holiday parks. Both apps serve a broad consumer audience.
When very different people use the same app, it has to be simple, reliable and pleasant to use. We steer every project towards that.
Consumer apps and booking platforms, but just as well B2B portals, internal business apps and media applications. We build anything that is custom work.
You will find the full portfolio on our cases page. All of those projects started with a no-obligation conversation.
Yes, and for larger organisations too. In the Haarlem and North Holland region these are often startups in the creative sector, media or the consumer market. Together we decide what goes into the MVP: what does the end user actually need, and what can wait? An MVP starts at €10,000 and can go live within 2 to 3 months.
Get in touch for a no-obligation call, even if your idea is not yet fully worked out.
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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