Delft and Rotterdam are just 15 km apart. The Next App builds custom apps and web applications for tech companies, knowledge institutions and SMEs in the Delft region. Our team works fully in-house, no outsourcing.
From €10,000 · Lead time 2–6 months · No-obligation introductory call
Companies that trust us









Just 15 km from Delft
Our office is in Rotterdam, just 15 km from Delft. We can quickly be on-site for an introductory meeting, demo or working session.
Flutter specialist
As one of the first agencies in the Netherlands, we adopted Flutter early. One codebase for both iOS and Android.
Dedicated contact person
No large organisation with rotating teams. You always work with the same developers throughout your project.

Why us
In Delft you'll find technology companies, knowledge institutions and startups with strong ties to TU Delft. We build apps for these types of clients: from geo-information systems and inspection apps to B2B platforms and customer portals.
Our office is at Westblaak in Rotterdam, just 15 km from Delft. We are quickly on-site for a meeting or demo, with the rest of the collaboration running via fixed online contact moments.
Our approach
A geo-information app or inspection tool takes more than just a clean interface.
We design the app based on your target users: engineers, researchers, customers or field workers.
With Flutter we build a single codebase for iOS and Android. That saves time and cost without compromising quality.
We connect the app to your existing software: GIS systems, databases, APIs or cloud platforms on Google Cloud.
After launch we remain available for updates, new features and performance improvements.


Get in touch
Rotterdam and Delft are just 15 km apart, easily reachable by road or metro. We can quickly be on-site in Delft for a meeting or demo, or you are welcome at our office at Westblaak 33 in Rotterdam.
Prefer to call directly? 010 307 6100
Schedule a no-obligation call →Previous work
Veelgestelde vragen
Yes. We work for clients across the Netherlands. Delft is just 15 km from our office in Rotterdam, so the threshold is especially low. We can quickly visit you in Delft for an introductory meeting, demo or working session.
You are also very welcome at our office at Westblaak 33 in Rotterdam.
Location has no effect on the price. A simple app starts from €10,000. A platform with multiple user roles, a backend and integrations can quickly reach €30,000–€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 we provide a transparent quote per phase.
Yes. We built the Perceelwijzer for the Unie van Waterschappen, a geo-information app for water management across the Netherlands, and the MasterCheck app for Acidus, an inspection platform for technical checks.
We understand what technical applications demand: reliability, offline functionality, tight data integrations and sometimes specific security requirements.
We build a wide range of apps: from geo-information systems and inspection tools to B2B platforms, government applications and internal business tools. As long as it is custom-built, we can build it.
View the full portfolio on our cases page. Every project started with a no-obligation conversation.
Yes. We work for both startups and larger organisations. TU Delft Valorisation supports spin-offs with funding and guidance; we take care of the technical execution. For startups we actively help scope 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 and we'll discuss what is feasible together, 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.
Schedule a call →