Web development agency for custom web apps and sites
We build custom web applications and websites from scratch, no page builders, no off-the-shelf templates. Olio handles the full stack in one place, from design through frontend and backend to deployment. Accessible, fast, and built so your team can maintain the result long after we hand it over.
What we build
We ship custom web apps, customer portals, dashboards, and fast marketing sites shaped around how your business actually works. Instead of bending a theme to fit, we write clean code for the features you genuinely need. Every project ships with responsive design, real accessibility, and an architecture that scales as you grow.
How we work
We work in short cycles with weekly demos, so you see progress and steer direction the whole way through. Following a lean approach, we build what matters most first rather than spending budget on features nobody uses. At handoff you get documented, tested code your team can run without us.
The tech stack
On the frontend we use Next.js, React, and Vue with TypeScript and Tailwind CSS for fast, type-safe interfaces. On the backend we work with Laravel and a solid PostgreSQL database, among other proven tools. We favour mature technology over experiments so your app stays stable and maintainable for years.
Why Olio
You work directly with senior engineers, with no layers in between and no vendor lock-in. As a boutique agency based in Mönchengladbach, we serve clients across Germany, Austria, Switzerland, and the wider EU, remote-first. Hosting runs GDPR-compliant and EU-sovereign on Hetzner, GCP EU regions, or AWS Frankfurt, without tying you to a single provider.
What you get
- Custom web apps and sites, not templates, matched exactly to your requirements
- Production-ready in weeks, without a costly senior hire
- Fast load times and considered accessibility built in from the start
- Clean, documented, tested code for a smooth handoff
- GDPR-compliant EU hosting with no vendor lock-in
- Weekly demos and transparent communication, no surprises
Core Technologies
Discuss your web app project
Frequently asked questions
What does a custom web application cost?
A simple MVP typically runs €25,000 to €40,000, and a full SaaS product with AI features €50,000 to €120,000. After a short call you get a transparent estimate scoped to exactly what you need.
How long does development take?
We usually deliver a first market-ready result in four to twelve weeks, depending on scope. A focused web app is often production-ready in around six weeks.
What does working with you look like?
We work in short iterations with weekly demos so you can steer decisions throughout. Following a lean method, we build the most important parts first and hand off documented, maintainable code at the end.
Which technologies do you use?
Next.js, React, or Vue with TypeScript and Tailwind CSS on the frontend, and Laravel with PostgreSQL on the backend, among others. We pick the stack to fit your project and stick to proven, maintainable technology.
Where are the applications hosted?
Fully GDPR-compliant and EU-sovereign where you want it, for example on Hetzner, in GCP EU regions, or on AWS Frankfurt. You stay flexible, and we deliberately avoid vendor lock-in.
Let's Talk
