Custom Web and App Development Solutions - W4


Technological solutions specifically tailored to your needs.

Welcome to W4, your one-stop-shop for professional web app development services. We understand that in today's fast-paced digital world, having a high-quality and efficient web app is essential to the success of your business. That's why we have committed to using the agile method, to ensure that we deliver modern, efficient, and agile web apps. 

With over 20 years of experience in the industry, our team of highly qualified app and web developers is committed to implementing, optimizing, and programming digital products that meet your unique requirements. From building a web app, to creating flawless API we can execute technical projects with full marketing perspective. At W4, customer service is at the core of everything we do, and we pride ourselves on delivering the best possible solutions for our clients.

Innovative e-commerce web app solutions to master the digital transformation and drive conversions

We understand that ecommerce businesses require smart web apps that can provide seamless and high-quality customer experiences across multiple channels. That's why we offer custom web app development services that leverage the latest technologies.

PWA (Progressive Web App) Development

By working with our team of expert app and web developers at W4, you can benefit from a highly effective PWA for your e-commerce business. Our developers use cutting-edge technology to create web apps that provide a seamless and engaging user experience.

Gain improved user experience: PWA technology enables web apps to load faster and work smoothly, providing an app-like experience to users.

Increase your customers engagement: With features like push notifications and offline capabilities, PWAs can help increase user engagement and encourage repeat visits.

Meet your customers where they are shopping with cross-platform compatibility: PWAs work on different devices and platforms, reducing the need for separate apps for iOS, or Android.

PWA Development
Web and App Development Agency

Headless Commerce Web Development

Headless commerce is an ecommerce architecture where the front-end is independent from the back-end commerce functionality. This makes it easy to update your front-end without having to interfere with the back-end. Partnering with W4's team of expert app and web developers enables you to take full advantage of all the benefits this ecommerce architecture has to offer:

Flexibility and Customization: Our developers use headless commerce architecture to create web apps that are flexible and customizable. This means we can create a frontend that perfectly suits your business needs, while integrating it with the backend of your choice. Our team can also customize the web app to meet your specific business requirements.

Faster Development: With the frontend and backend decoupled, our developers can work independently, speeding up the development process. This also means that any changes you make to the frontend won't affect the backend and vice versa. Our team can deliver your project faster, reducing your time-to-market and helping you stay ahead of the competition.

Scalability: Headless commerce architecture is designed for high traffic and can easily scale as your business grows. This ensures that your web app can handle increasing traffic and provide a seamless user experience for all your customers, regardless of the number of visitors on your website.

Accessibility: Maintaining the content for backend users in one place, such as a product database or a single CMS. With headless commerce, you can manage your content separately from the presentation layer, making it easier to maintain and update content without disrupting the user interface

Enterprise Web Apps for Seamless operations management

PIM solutions to consolidate your product information across data sources

With our product information management (PIM) solution, you can streamline your product management process and maximize efficiency. Our team of experts specializes in implementing the open source PIM Akeneo, allowing you to centrally manage and edit your product data across all channels. By integrating reliable interfaces between the PIM and your e-commerce platform, you can quickly access full product information, reducing your time-to-market.

Optimize your product management process: With our PIM development and integration services, we can help you streamline your product information management process, making it easier to manage your product data, ensure consistency across channels, and update information in real-time.

Increase productivity and efficiency: By leveraging our PIM expertise, we can help you build a more efficient and productive web application that can integrate with other systems and applications. This can help you automate manual tasks, reduce errors, and ultimately save time and money

Boost your sales and increase customer satisfaction: By ensuring that your product data is up-to-date and consistent across all channels, including your website, mobile app, print solutions, and external databases.

 product information management solutio
Odoo CRM & Module Development

Odoo CRM & Module Development

W4 provides comprehensive Odoo consultancy and web app development services for businesses. Our team of experts handles everything from development to staging to production, ensuring that you receive a seamless experience. We offer a range of services, including Odoo CMS development, Odoo theme development, and customized Odoo development. 
Partnering with W4 for Odoo web app development can provide your business with several benefits, including:

Access to Expertise: Our team of skilled developers has extensive experience in building Odoo software and can provide you with the expertise you need to drive the growth of your business.

End-to-End Support: We offer end-to-end support, taking care of the development, staging, and production of your Odoo apps. This means you can focus on running your business while we take care of the technical aspects.

Customization: We offer customized Odoo development services to meet the varying needs of different clients. This means that you can tailor your Odoo software to fit your specific business requirements and achieve your goals quickly and efficiently.

CMS Development and Integration Services

At W4, we offer comprehensive CMS development and integration services to help businesses create and maintain an effective online presence. Here are some ways that partnering with our team of expert app and web developers can help you achieve your CMS development and integration goals:

Customization: Our team of developers will work closely with you to understand your business requirements and create a custom solution for popular CMS’s like Typo3, Hubspot, or Wordpress  that meets your specific needs. This means you get a CMS that is tailored to your business and can help you achieve your unique goals.

Integration: We can integrate your CMS with other business systems, such as ERP, CRM, and e-commerce platforms, to ensure that your data is consistent and up-to-date across all platforms. This will help you streamline your operations, reduce data errors, and increase efficiency.

Maintenance and Support: We offer ongoing maintenance and support services to ensure that your CMS is up-to-date, secure, and performing optimally. This means you can focus on growing your business, while we take care of the technical details.

Web App Development - W4 Agency

Standardized interface development (API) for data exchange and integration

Our team of solution architects can help you facilitate communication between different applications or systems, allowing them to share data and functionality. APIs are particularly important for building scalable and flexible web applications. By providing a standardized interface for data exchange and integration, APIs allow web apps to be easily extended, customized, or exchanged as business needs evolve over time.

Increased productivity and efficiency: With our API development service, you can build a more efficient and productive web application that can integrate with other systems and applications. This can help streamline your business processes, reduce manual data entry, and minimize errors, ultimately saving you time and money.

Improved customer experience: By leveraging our API development expertise, you can build a web application that provides a seamless and personalized customer experience. APIs allow you to integrate with other systems and services, such as social media platforms, payment gateways, and third-party data sources, to provide your customers with more personalized and engaging experiences.

Competitive advantage: By developing an API-driven web application, you can gain a competitive advantage in your industry. APIs allow you to build more innovative and differentiated products and services, and can help you stay ahead of the curve when it comes to technology trends and customer expectations. By partnering with us for your API development needs, you can be confident that you are building a cutting-edge web application that will help your business succeed.

Web app development success stories


Website relaunch and interface development for Fortyseven


Rebranding and website relaunch for Therme Zurzach with Hubspot.


Headless CMS for Tischler Reisen with outstanding performance

TUI Group

Segment newsletter for TUI Group – personalized customer approach with extra value

LIE mobil

Liechtenstein transport companies bring subscription tickets to the wallet.


Headless CMS with outstanding performance for Tourasia website.


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Satisfied customers like to come back and become partners.

Unparalleled Technology Partner
W4 has been an incredible partner for us as a Digital Marketing Agency, providing fast, reliable, and consistent technical and IT developer solutions. From building a Web App to creating flawless APIs, W4 is a unique partner in that they can execute highly technical IT tasks with full competence of a marketing perspective. We are always impressed with their thorough attention to detail and creative approach to providing solutions. W4 has enabled us to discover technical workarounds within Hubspot we did not even think would be possible! We look forward to continuing to work with W4 on our future projects!

MediaBros. GmbH
Ashley Gehrig-Alioto

Flexibler und effizienter Websiteentwickler
W4 unterstützt uns beim Unterhalt (Updates) sowie bei der Weiterentwicklung der Typo3-Webseite. Zudem reagieren sie schnell und haben immer eine Lösung, um ein Problem zu beheben oder eine neue Funktion einzubinden.

Meyer Burger
Simon Flück



Website development

Ma Tank

Your Web app development specialists

Sarah Wilhelm
Sarah Wilhelm
+41 44 562 49 39
Termin vereinbaren
Jens Zscheile
Jens Zscheile
Solutions Engineer
+41 44 562 49 42