Business app developmentthat accelerates your processes

Business app development
that accelerates your processes.

A business app is only valuable when it seamlessly fits how your organisation works. Spartner builds enterprise apps that integrate with your existing systems, work on any device and scale with your ambitions. No off-the-shelf templates, but an app that does exactly what you need.

Why a business app?

An app built around your business process

Business app development in the Netherlands

More and more organisations across the Netherlands rely on business apps: from field staff in Rotterdam entering orders on the go, to project managers in Amsterdam wanting real-time progress insights. But an app that truly adds value requires more than a nice interface. It requires a well-thought-out integration with your CRM, ERP or other business systems.

When off-the-shelf falls short

Most organisations start with standard tools. Fine, until you notice they don't fit your specific workflow. Manual entry because the app doesn't integrate. Workarounds because a feature is missing. That's when custom development becomes the logical step: an app that does exactly what's needed, connected to the systems you already use.

One platform, every device

We build business apps that work on iOS, Android and web from a single codebase. That means faster delivery, lower maintenance costs and a consistent experience for your users, whether they're at the office or on the road.

Benefits of custom business app development

What a bespoke business app delivers

Direct system integration

Your app communicates directly with your CRM, ERP, inventory system or accounting software. No duplicate entry, no loose exports. Data flows automatically between systems.

Works offline

Field staff don't always have a stable connection. A custom business app works offline and syncs automatically once connectivity returns.

Roles and permissions

Not everyone needs to see everything. With roles and permissions you control exactly who can access which data and features. Secure, clear and compliant.

Scalable and extensible

Start with core functionality and expand later. Add new modules, extra integrations or AI features when your organisation needs them.

From client portals to field service apps

What business apps do we build?

Business app development covers a broad range. We build:

  • Client portals where customers place orders, view invoices or create tickets

  • Field service apps for technicians, inspectors or sales reps who capture data on the go

  • Internal business apps for inventory management, time tracking or approval workflows

  • Dashboard apps providing real-time insight into KPIs, orders or project progress

  • B2B ordering platforms with customer-specific pricing and product ranges

Every app is connected to your existing systems via API integrations, so there's no duplicate work and data is always up to date.

Business apps with built-in AI.

At Spartner we combine years of app experience with #MIND-white, our own AI platform. That means apps that don't just display data, but process it intelligently. Think automatic form recognition, smart search or AI-driven notifications. No buzzwords, but concrete functionality that saves your users time.

Our approach.

From first conversation to working app, in four clear steps. Read more about how we work.

Analysis and strategy.

We start with an in-depth conversation. Who are the users? Which processes should the app support? Which systems need to be integrated? Based on that, we determine the scope, platform (iOS, Android, web or a combination) and technical architecture together.

Design and prototype.

We design the user experience and build a working prototype. You see exactly how the app looks and feels before development starts. Feedback at this stage prevents costly changes later.

Agile development.

We build in short sprints. After each sprint we demonstrate working functionality and incorporate feedback. Integrations with existing systems and any AI features are tackled in parallel.

Launch and evolution.

After launch we support you with maintenance, monitoring and ongoing development. Apps are never finished. New features, extra integrations or performance optimisations are added when your organisation needs them.

Local expertise, national reach

Business app development from the Netherlands

Whether you're in Amsterdam, Rotterdam, Hilversum or elsewhere in the Netherlands: Spartner is your technical partner for business app development. We work with organisations across the country, from SMEs to enterprise. Personal contact and short communication lines are central, regardless of location.

Data within the EU

Your business data stays within the EU. Our apps run on European infrastructure and comply with GDPR requirements. No data disappearing to American servers, no ambiguity about who has access. You stay in control of your data and your app.

Hans Lugtenberg

"A deal is a deal"

Yield.inc is a new asset manager in the Netherlands that focuses on excellent customer experience, sustainability and technology. When faced with the question of whether to develop our platform in-house or with a partner, we got in touch with Spartner. We are still 100% behind the choice for Spartner because we own the source code and with Spartner, a deal really is a deal, whether it concerns the delivery date or the agreed budget!

Hans Lugtenberg Partner at Yield Inc.

Norbert Wegter

"A professional software partner since 2010"

Spartner is involved and contributes in our search for innovations and always delivers top-notch work. After the first Huurda.nl version got out-dated, we collaboratively launched a completely new version in 2020.

Custom-built search engine for rental properties

Norbert Wegter Owner of 123wonen and Expat Homes Holland

"Doijer & Kalff"

After transferring our D&K portal to Spartner, we have elevated the further development and continuity to a higher level. Although the D&K platform was originally developed internally, our technical expert can now focus on other innovations within Doijer & Kalff. Spartner provides the quality we need without excessive costs. They have seamlessly taken over the care of our portal, allowing us to benefit from a flexible capacity that perfectly aligns with our future plans and innovation goals.

Reinier van Bergen Managing Director at Doijer & Kalff

Jurjen Terpstra

"Pragmatic and flexible collaboration"

Spartner has created a customized portal for us for the accountability of large-scale collaborative projects. This enables us and our partners to execute and account for their plans in a shared environment that is secure, transparent, and manageable. The pragmatic and flexible collaboration with Spartner has ensured that we have quickly achieved a functional and user-friendly environment.

Jurjen Terpstra Managing Partner at Wecreate Consulting

Marco Caspers

"AI and machine learning as legal tools"

In 2020, we transferred the development of Lynn to Spartner. As a result of their fast development process, the Lynn platform achieves an increasingly central role in the legal world.

Lynn, the smart AI legal robot

Marco Caspers Software Development Manager at Lynn Legal

Bjorn Gubbels

"As a business you must dare to move forward"

Innovation and change are not always welcomed with equal enthusiasm by our employees, man is a creature of habit but as a company you have to dare to move forward and the need for a contemporary drawing program for the realization of various constructions with our Masterbloc bricks was high. For us but also for Spartner, this challenge was a bit of pioneering and together we had to overcome some hurdles to arrive at a beautiful and efficient business tool. A development and learning process for both parties, in which the feedback of questions and desired adjustments by our employees to Spartner was always in good consultation and we could count on quick feedback and targeted solutions. We continue to exchange experiences with Spartner and look back and forward to a successful collaboration.

Powerful 3D construction drawing software

Bjorn Gubbels Owner of Masterbloc

Marco Leenders

"Spartner extends our capabilities and development capacity"

With weekly calls, using our Azure DevOps sprint system, Spartner actively works together with our innovation, communication and software development departments.

Multi-website CMS with Statamic 3

Marco Leenders Head of Automation

Josh Mountain

"Have been using Laravel Excel for years"

We requested custom help to a performance challenge we had in our implementation of Laravel Excel. I was amazed how quickly these Laravel artisans achieved significant performance gains, which saved us a lot of development time.

Open source package for Laravel

Josh Mountain Co-Founder at IncentivePilot.com

Maurice Evers

"Higher occupancy rate thanks to our user-friendly platform"

Throughout the great years that we cooperate with Spartner (previously Maatwebsite, Ed.), our software has been developed continuously. Students and landlords actively work with features like allocation, payments, chat, contract generation and more.

Custom built ERP for all student residences

Maurice Evers Head of Student Housing Department

Maarten Bremer

"Innovating in the digital identification network of The Netherlands and Europe"

The pro-active approach of Spartner was crucial in understanding the complexity of the eHerkenning network.

Development of eHerkenning connection and services

Maarten Bremer CTO / Founder Ensured

Niels Winters

"Innovation in legal technology"

As jurists with knowledge of IT, we highly value quality; within code, but also in process. The high work-level and trustworthiness of Spartner gives us the capacity to continuously create innovative features.

Legal tech platform

Niels Winters Managing Director JuriBlox

Frequently asked questions about business app development

Practical answers to the questions we hear most about building a custom business app.

What does business app development cost?

Costs depend on complexity, the number of platforms and integrations required. We prefer to start with an MVP so you can build up the investment gradually. In an initial conversation we provide a realistic estimate.

Do you build native or cross-platform apps?

That depends on your situation. For most business apps, cross-platform (a single codebase for iOS, Android and web) is the smartest choice: faster delivery and lower maintenance costs. When maximum performance or hardware integration is required, we build native.

Can the app integrate with our CRM or ERP?

Yes, that's one of the key advantages of a custom business app. We build API integrations with CRM systems, ERP packages, accounting software and HR systems. Data flows automatically, without manual entry.

How long does it take to build a business app?

A well-scoped MVP is typically ready within 6 to 12 weeks. More complex apps with extensive integrations take longer, but by working agile you receive working components along the way.

Does the app work offline?

Yes, if needed. For field service apps or situations without stable connectivity, we build in offline functionality. The app syncs automatically once the connection is restored.

Who owns the app?

You do. The source code is yours and stays yours. No vendor lock-in. You can always have the app further developed, even by another party if needed.

What role does AI play in business app development?

We use our own #MIND platform to build smarter apps. Think automatic document recognition, intelligent search, AI-driven notifications or chat functionality. AI isn't a goal in itself, but a means to make your app more powerful.

Which industries do you build business apps for?

We build business apps for a wide range of industries: fintech, logistics, healthcare, real estate, manufacturing and professional services. Every app is tailored to the specific requirements of your industry.

Feel like a cup of coffee?

Whether you have a new idea or an existing system that needs attention?

We are happy to have a conversation with you.

Call, email, or message us on WhatsApp.

Bart Schreurs
Business Development Manager
Bart Schreurs

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