Web application development
Powerful web applications that work in any browser, without installation. Instant access from any device with native performance.
Your App Always Available, Without Barriers
Do you need an app accessible from any device without going through the app stores?
Why force your users to download anything? Modern web applications offer experiences indistinguishable from native apps: they work offline, send notifications, and run in full screen. All from the browser.
For over a decade, we've been developing web apps for businesses that need to reach their users seamlessly. SaaS platforms that manage mission-critical operations. Progressive Web Apps (PWAs) that work equally well on mobile and desktop. Internal web applications that have transformed how entire teams work. These diverse projects share a common thread: they continue to function years later, scale when needed, and don't depend on Apple or Google approval for every update.
From Idea to Browser
Our web app development process minimizes risk and accelerates launch time. No waiting for app store approvals, continuous deployments, and immediate feedback.
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Discovery and Definition
We analyze your model to define the best architecture: PWA , SPA (Single Page Application) or cloud-native application? We evaluate accessibility requirements and define the MVP.
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UX/UI Design
Wireframes and responsive visual design that guarantee an optimal experience on mobile, tablet, and desktop. Interfaces with immediate responsiveness .
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Iterative Development
Cycles with deployed versions that you can test in your browser. No compilations, no waiting: just open the link and test your web application .
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Testing and Performance
Testing across multiple browsers and devices. Automated testing, accessibility audits, and page load speed optimization.
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Continuous Deployment
We release updates when they're ready, not when a store allows it. Cloud-native infrastructure with zero downtime.
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Maintenance and Evolution
Web applications evolve with your business. We offer ongoing maintenance, security patches, and development of new features.
Why Mecexis for your Web App Development
Experience in web applications used by thousands of people every day
There are many agencies that build websites. Few build web applications that process critical business operations.
We've developed SaaS platforms that manage millions of euros in transactions. Internal web apps that have eliminated Excel spreadsheets for entire departments. PWAs that work offline in environments without stable connectivity. Systems that have been in production for years without interruption.
We achieved this because we master the entire stack. We develop the frontend with responsiveness and the backend with Django, the Python framework chosen by Instagram and Spotify when they need to scale. We manage the cloud-native infrastructure. When there's a problem, there's no pointing fingers: we diagnose it and fix it. One point of contact, full responsibility.
Web app development with us means web applications that update instantly, without your users having to do anything. No outdated versions circulating. No dependence on third parties for publishing.
Frequently Asked Questions
Clear answers to the most common questions about web app development .
Everything You Need to Know Before You Start
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1
What is the difference between a web app and a traditional mobile app?
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Web applications run directly in your browser, without installation . They don't need to go through the App Store or Google Play. They update instantly and are accessible from any device with a browser: mobile phone, tablet, or computer.
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2
What is a PWA and why should I consider one?
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A PWA (Progressive Web App) is a web application that offers a native app experience: it works offline, can send notifications, and can be "installed" on the home screen. It combines the best of web and mobile without the duplicate development costs.
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3
How much does it cost to develop a web app?
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It depends on the scope. A functional MVP-type web application typically costs between €10,000 and €45,000. More complex SaaS platforms with multiple roles and advanced features can exceed €80,000. We'll provide you with a detailed quote after understanding your needs.
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4
How long does it take to be ready?
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A typical web app MVP is in production within 2-4 months. More complex web applications may require 5-8 months. We work in two-week sprints with consistent releases.
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5
Do web applications work offline?
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Yes, modern PWAs and web applications can work offline using Service Workers. They store data locally and synchronize when they regain a connection. Ideal for field teams or environments with unreliable connectivity.
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6
Can it connect to our current systems?
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Absolutely. We integrate your web application with ERPs, CRMs, payment gateways, and third-party services using APIs. If your system doesn't have an API, we'll develop a connection layer. Our web apps integrate with any ecosystem.
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7
What technologies do you use for web app development?
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Our stack guarantees robust web applications : Django (Python) on the backend for its security and scalability, combined with Vue.js, HTML, or React on the frontend for maximum responsiveness . Cloud-native architecture for flexible deployments.
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8
Are web apps accessible to people with disabilities?
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Accessibility is a fundamental part of our process. We develop following WCAG standards, ensuring your web applications are usable by everyone. This also improves SEO and overall usability.