Book meeting

Book meeting

Book meeting

Flutter

Flutter

Entwicklung

Entwicklung

Jahrelange Erfahrung seit Flutter 1.0 – direkt aus Hamburgs HafenCity.

Jahrelange Erfahrung seit Flutter 1.0 – direkt aus Hamburgs HafenCity.

Book initial consultation

Book initial consultation

Book initial consultation

Some of our 40+ loyal customers

Über Video
Über Video
Über Video

Your Sparring Partner

Your Sparring Partner

Your Sparring Partner

We are a tech agency based in Hamburg, specializing in custom software, web & mobile apps, and design.

We are a tech agency based in Hamburg, specializing in custom software, web & mobile apps, and design.

We are a tech agency based in Hamburg, specializing in custom software, web & mobile apps, and design.

Fixed Point of Contact

A fixed point of contact throughout all your projects. Reliable, accessible, and always in the know.

In-House

We do not let go of anything. Our projects are developed entirely within our team – with full focus and control.

Services

Services

Services

Warum Flutter?

Als Framework von Google setzt Flutter auf eine Hochleistungs-Rendering-Engine, liefert native 120-FPS-Erlebnisse für iOS, Android, Web & Desktop aus nur einer Codebasis und beschleunigt mit Hot Reload Iterationen von Minuten auf Sekunden. Es reduziert Entwicklungs- und Wartungskosten um bis zu 40 % und gewinnt dank wachsender Community, stabiler Long-Term-Support-Releases und über 30 000 Packages in Pub immer größere Beliebtheit bei Start-ups wie Enterprise-Teams.

Schnelle Entwicklung

Hot Reload verkürzt Feedback-Zyklen auf Sekunden, eine einzige Codebasis bedient iOS, Android, Web & Desktop. Du launchst MVPs früher, iterierst rascher und rollst Features parallel für alle Plattformen aus – perfekt für Start-ups mit knackigen Deadlines.

Kostenersparnis

Weniger Entwicklerstunden, kein Doppelaufwand für native Teams: Automatisierte CI/CD-Pipelines und schlanke Widgets senken Budgets. Kunden sehen bis zu 40 % niedrigere Entwicklungs- und Wartungskosten gegenüber getrennten iOS/Android-Projekten – ohne Performance- oder Design-Kompromisse.

Ökosystem

Als Google-Framework erhält Flutter stabile Long-Term-Support-Releases und wächst rasant. Eine aktive Community liefert kontinuierlich neue Libraries, Integrationen und Security-Updates, sodass du technologisch flexibel bleibst und von beständiger Weiterentwicklung profitierst.

Individual software

Trainingscamp App – Termine & Check-ins in Echtzeit

Aufgabe
Ein Bundesliga‑Club wollte Trainings & Termine für Trainer, Spieler und Gäste in einer einzigen App organisieren – inklusive Live‑Anwesenheitsanzeige und rollenbasierter Sichtbarkeit.


Unsere Flutter‑Lösung
Wir adaptierten unsere bestehende Event‑Plattform: Flutter‑Frontend für iOS & Android, Firebase‑Backend für Auth und Realtime‑Sync, modulare Clean Architecture für schnelle Iterationen und einfache Erweiterbarkeit.


Ergebnis
Eine schlanke App steuert heute alle Termine, zeigt Live‑Status auf dem Trainingsgelände und wird vom gesamten Team täglich genutzt – ohne Papier‑ oder Tabellenchaos.

This is us in Numbers

This is us in Numbers

This is us in Numbers

Since our founding, we have been accompanying companies on their journey to digital success.

11

Heads

Project managers, designers, and developers work hand in hand with us – all in-house and perfectly coordinated.

Community
Community
Community

40+

Customers

Companies from various industries rely on our expertise and trust our solutions.

4

Team Events

in the year, that makes colleagues into a real team.

Video Background
Video Background
Video Background

600k

Downloads

Our mobile apps reach users worldwide - with performance that convinces.

13

Workshops

In 2024, we prepared teams for the practical use of artificial intelligence and sustainably optimized their processes.

Community
Community
Community

Our customers rate us 4.98/5

Customers rate us 4.98/5

This is how people talk about us

  • The agency helped us build a web app. The collaboration with the agency felt as though we had the developers in-house and not externally. Always very timely feedback and updates.

    Maximilion Seeburg

    1Up Capital GmbH

  • The agency helped us develop an app and launch it. Fast and straightforward communication. Quick adaptation to changes.

    Stefan Reiner

    SL playfully learning GmbH

  • [...] very good and creative suggestions on how to improve the app, and the straightforward and direct collaboration. They also did not shy away from putting extra work into the app so that it can better meet the needs of the users.

    Prof. Dr. Gabriele Oettingen

    WOOP

  • hafencity.dev helped us build a SaaS tool in the HR sector and did an excellent job. The implementation was perfect, and during the concept phase, the team was a competent sparring partner and source of inspiration.

    Simon Schäfer

    Folkz GmbH

  • [...] The team led by Hauke quickly familiarized themselves with our complex project, asked smart questions, and considered important aspects during the introductory meeting. You can tell that genuine interest and a lot of experience come together here on the client side. [...]

    Felix Nunn

    PaarBalance GmbH

  • Entwicklung einer mobilen App und einer dazugehörigen Website für unser Projekt. Von der Gestaltung bis zur finalen App haben wir rasche Fortschritte gemacht und sind mit dem Ergebnis zufrieden. Wir haben über 100.000 Downloads erreicht und eine zufriedene Community.

    Jana

    Go 428 LLC

  • The agency helped us build a web app. The collaboration with the agency felt as though we had the developers in-house and not externally. Always very timely feedback and updates.

    Maximilion Seeburg

    1Up Capital GmbH

  • The agency helped us develop an app and launch it. Fast and straightforward communication. Quick adaptation to changes.

    Stefan Reiner

    SL playfully learning GmbH

  • [...] very good and creative suggestions on how to improve the app, and the straightforward and direct collaboration. They also did not shy away from putting extra work into the app so that it can better meet the needs of the users.

    Prof. Dr. Gabriele Oettingen

    WOOP

  • hafencity.dev helped us build a SaaS tool in the HR sector and did an excellent job. The implementation was perfect, and during the concept phase, the team was a competent sparring partner and source of inspiration.

    Simon Schäfer

    Folkz GmbH

  • [...] The team led by Hauke quickly familiarized themselves with our complex project, asked smart questions, and considered important aspects during the introductory meeting. You can tell that genuine interest and a lot of experience come together here on the client side. [...]

    Felix Nunn

    PaarBalance GmbH

  • Entwicklung einer mobilen App und einer dazugehörigen Website für unser Projekt. Von der Gestaltung bis zur finalen App haben wir rasche Fortschritte gemacht und sind mit dem Ergebnis zufrieden. Wir haben über 100.000 Downloads erreicht und eine zufriedene Community.

    Jana

    Go 428 LLC

  • The agency helped us build a web app. The collaboration with the agency felt as though we had the developers in-house and not externally. Always very timely feedback and updates.

    Maximilion Seeburg

    1Up Capital GmbH

  • The agency helped us develop an app and launch it. Fast and straightforward communication. Quick adaptation to changes.

    Stefan Reiner

    SL playfully learning GmbH

  • [...] very good and creative suggestions on how to improve the app, and the straightforward and direct collaboration. They also did not shy away from putting extra work into the app so that it can better meet the needs of the users.

    Prof. Dr. Gabriele Oettingen

    WOOP

  • hafencity.dev helped us build a SaaS tool in the HR sector and did an excellent job. The implementation was perfect, and during the concept phase, the team was a competent sparring partner and source of inspiration.

    Simon Schäfer

    Folkz GmbH

  • [...] The team led by Hauke quickly familiarized themselves with our complex project, asked smart questions, and considered important aspects during the introductory meeting. You can tell that genuine interest and a lot of experience come together here on the client side. [...]

    Felix Nunn

    PaarBalance GmbH

  • Entwicklung einer mobilen App und einer dazugehörigen Website für unser Projekt. Von der Gestaltung bis zur finalen App haben wir rasche Fortschritte gemacht und sind mit dem Ergebnis zufrieden. Wir haben über 100.000 Downloads erreicht und eine zufriedene Community.

    Jana

    Go 428 LLC

  • The agency helped us build a web app. The collaboration with the agency felt as though we had the developers in-house and not externally. Always very timely feedback and updates.

    Maximilion Seeburg

    1Up Capital GmbH

  • The agency helped us develop an app and launch it. Fast and straightforward communication. Quick adaptation to changes.

    Stefan Reiner

    SL playfully learning GmbH

  • [...] very good and creative suggestions on how to improve the app, and the straightforward and direct collaboration. They also did not shy away from putting extra work into the app so that it can better meet the needs of the users.

    Prof. Dr. Gabriele Oettingen

    WOOP

  • hafencity.dev helped us build a SaaS tool in the HR sector and did an excellent job. The implementation was perfect, and during the concept phase, the team was a competent sparring partner and source of inspiration.

    Simon Schäfer

    Folkz GmbH

  • [...] The team led by Hauke quickly familiarized themselves with our complex project, asked smart questions, and considered important aspects during the introductory meeting. You can tell that genuine interest and a lot of experience come together here on the client side. [...]

    Felix Nunn

    PaarBalance GmbH

  • Entwicklung einer mobilen App und einer dazugehörigen Website für unser Projekt. Von der Gestaltung bis zur finalen App haben wir rasche Fortschritte gemacht und sind mit dem Ergebnis zufrieden. Wir haben über 100.000 Downloads erreicht und eine zufriedene Community.

    Jana

    Go 428 LLC

Some of our 40+ loyal customers

[...] very good and creative suggestions on how to improve the app, and the straightforward and direct collaboration. They also did not shy away from putting extra work into the app so that it can better meet the needs of the users.

Prof. Dr. Gabriele Oettingen

WOOP

[...] very good and creative suggestions on how to improve the app, and the straightforward and direct collaboration. They also did not shy away from putting extra work into the app so that it can better meet the needs of the users.

Prof. Dr. Gabriele Oettingen

WOOP

[...] The team led by Hauke quickly familiarized themselves with our complex project, asked smart questions, and considered important aspects during the introductory meeting. You can tell that genuine interest and a lot of experience come together here on the client side. [...]

Felix Nunn

PaarBalance GmbH

[...] The team led by Hauke quickly familiarized themselves with our complex project, asked smart questions, and considered important aspects during the introductory meeting. You can tell that genuine interest and a lot of experience come together here on the client side. [...]

Felix Nunn

PaarBalance GmbH

The agency helped us build a web app. The collaboration with the agency felt as though we had the developers in-house and not externally. Always very timely feedback and updates.

Maximilian Seeburg

1Up Capital GmbH

The agency helped us build a web app. The collaboration with the agency felt as though we had the developers in-house and not externally. Always very timely feedback and updates.

Maximilian Seeburg

1Up Capital GmbH

From now on, we are a team

Write to us - together we'll find out if we can support you with your project.

Book meeting

From now on, we are a team

Write to us - together we'll find out if we can support you with your project.

Book meeting

From now on, we are a team

Write to us - together we'll find out if we can support you with your project.

Book meeting