Desktop App Development

When a web page can't handle your data volume, your security needs, or your offline requirements, desktop apps are the answer. I build native macOS and Windows applications that replace bloated Excel workflows, crashing web tools, and abandoned legacy software — with real performance and real reliability.

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What you get

1 macOS + Windows

Cross-platform desktop apps built with Flutter Desktop — one codebase, two platforms.

2 Offline-first

Your app works without internet. Critical for factories, warehouses, and field teams.

3 Heavy data workloads

Process gigabytes of data without crashing. Real native performance.

4 Custom installers

.dmg for macOS, .msi / .exe for Windows. Auto-updates included.

5 Internal tools specialty

I love replacing Excel hell with clean, fast desktop software your team will actually use.

Choose your city

Each city has its own dedicated page with insights, case studies, and a contact form.

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Want to discuss your project?

In 15 minutes, you'll know where to start. No commitment. No technical jargon.

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Working together remotely

Most of my projects run remotely, and in practice that changes very little. We talk over video whenever you need to, not only at major milestones, and you can reach me with questions at any point during the project — I always answer.

Once we are working together, travelling to meet you on site can absolutely be arranged if your project calls for it. Travel costs are quoted separately, upfront and with no surprises.

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About the author

Mickael Romaniello — Mobile product engineer based in Bordeaux, France. 12 years building iOS, Android and desktop apps. 15+ projects delivered for startups, mid-market companies and enterprise clients. LinkedIn.

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Standards & references

Apple Human Interface Guidelines · Google Material Design · web.dev (Google) · MDN Web Docs · OWASP Mobile Top 10