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Android, iOS, Web, and Desktop. One Codebase, One Team.

Most companies pay separate teams to build the same app twice. We think that money is better spent elsewhere. Ernst & Conte is a Swiss software consultancy that designs, builds, and maintains Android, iOS, web, and desktop applications from a single Kotlin codebase. Fewer handoffs, faster releases, and one team that stands behind the result.

What We Do

A new product, an ageing codebase, or a project that lacks the people to deliver it: we cover the whole lifecycle, from architecture to app store.

Kotlin Multiplatform

One shared codebase for Android, iOS, desktop, and web. Your users get fully native apps. You pay for one implementation, and every fix reaches all platforms at once.

App Development

From a first prototype to a banking app with 150,000 users, we build Android and iOS applications that are ready for production. Native where it matters, shared where it saves you money.

Fullstack Development

Apps rarely come alone. We build the backends, web frontends, and cloud infrastructure behind them, along with the CI/CD pipelines that get releases out the door reliably.

AI Integration and Automation

We bring AI into your infrastructure and workflows. We automate processes and reviews, integrate AI into software development, and build company-specific chat applications. Our cloud and on-premises solutions work in regulated environments too.

The People You'll Work With

Patrick Del Conte, Software Architect and Partner at Ernst & Conte, Switzerland

Patrick Del Conte

Software Engineer & Partner

Patrick designs the architecture and backend systems our projects stand on. Anything that has to survive real production traffic crosses his desk first.

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Matthias Ernst, Kotlin Multiplatform Lead and Partner at Ernst & Conte, Switzerland

Matthias Ernst

Software Engineer & Partner

Matthias leads our Kotlin Multiplatform work. He has shipped shared codebases for years, most recently a pension app used by 150,000 people.

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Marc Rymann, Mobile Development Engineer at Ernst & Conte, Switzerland

Marc Rymann

Software Engineer & Associate

Marc is our mobile specialist for Android and iOS. He sweats the details your users notice: stable apps, smooth releases, no surprises.

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Our Product

Meet Tessa, Our Testing Companion

Tessa watches how people actually use your app, finds the flows nobody is testing, and writes plain-language test scenarios for them. Your team reviews each one, runs it on real Android and iOS devices, web browsers, and desktop targets, and gets screenshots and logs for every step. No test code to write, none to maintain.

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Tell Us About Your Project

What Happens Next

We read every inquiry personally and reply within one business day. You get an honest assessment of whether we can help. If we can, we propose a concrete next step. If we can't, we say so and point you in a better direction.