Services

Zero compromises. Hands-on mindset.

We don't deal in buzzwords – we deliver results. With an interdisciplinary team that tackles challenges head-on – pragmatic, creative, and hands-on.

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Capabilities

Strategy, design, and engineering for digital products

Senior leadership across strategy, design, and engineering — all in-house in Hamburg, built for measurable outcomes and durable architecture.

Product strategy

We sharpen goals, prioritise features and turn ideas into a practical product roadmap.

DiscoveryProduct strategyRoadmapAI readinessProcesses

UX/UI & design systems

We design clear interfaces that make complex workflows understandable and fast to use.

UX flowsUI designDesign systemPrototypingUser testingAccessibility

Web & app development

We build robust web and mobile apps with stable architecture, performance and quality assurance.

Mobile appsWeb appsPWAAI featuresBackendPerformanceQAPrivacy

Recent work

Current projects at a glance

Selected product visuals from references already listed on our projects page.

Digital Wellbeing / Consumer App

Sperrstunde

An iOS app that reduces doomscrolling, blocks apps on schedule and supports better sleep routines.

Games

SL GmbH

A learning game that makes employment-law content understandable, interactive and easy to repeat.

Software

Folkz GmbH

A recruiting platform that helps HR teams create, review and publish job ads faster.

Public Sector / City App

Berlin App

A mobile city-service concept with onboarding, Berlin Card logic and clear guidance for everyday use cases.

Marketplace / Construction Industry

B2B machinery marketplace

A B2B marketplace for construction companies with trust signals, contract logic and clear request flows.

AI / Sustainability

Verda

An AI chat app for sustainable decisions with model routing, impact transparency and launch support.

Blockchain

Vision Crypto LLC

A crypto wallet that brings portfolio, transfers and market data for multiple chains into real-time workflows.

Social Media

Frynz

A social app for spontaneous meetups, live maps and event chats in a focused mobile experience.

Mobility / Fleet Management

Fleet management platform

An operational fleet platform for maintenance, costs, vehicle data and tasks across 20 to 500 vehicles.

Psychology

Prof. Dr. Oettingen

A mobile WOOP app that turns goal setting, motivation and reflection into a clear daily routine.

Sports Gaming / Fantasy Sports

Tentasy

A fantasy-tennis concept with team selection, league logic and a mobile community experience.

Education / Social Community

StudyNect

A campus app that connects students through interests, groups and communities.

Finance

1Up Capital GmbH

A finance platform that gives publishers predictable pre-financing and transparent payout workflows.

EdTech / School Administration

Akteo

A school-records platform that brings data, documents and workflows into one secure web system.

Industrial SaaS / Mechanical Engineering

Mechanical-engineering service portal

A service portal that unifies machines, tickets, spare parts and live data in one workflow.

Field Service / Trades & Mid-Market

Field-service platform

A field-service platform that connects dispatch, technicians, reports and knowledge data in real time.

Sport

not public

A training-camp app for groups, schedules and check-ins that simplifies on-site organization.

Fitness / HealthTech

not public

An app concept for connected gyms with check-in, live training, sleep tracking and goal management.

Events

APIS Events

A distinctive web presence that brings event formats, brand identity and inquiry paths into one clear flow.

SEO

not public

A technical SEO tool that combines crawling, issue analysis and prioritized recommendations in one dashboard.

Digital Wellbeing / Consumer App

Sperrstunde

An iOS app that reduces doomscrolling, blocks apps on schedule and supports better sleep routines.

Games

SL GmbH

A learning game that makes employment-law content understandable, interactive and easy to repeat.

Software

Folkz GmbH

A recruiting platform that helps HR teams create, review and publish job ads faster.

Public Sector / City App

Berlin App

A mobile city-service concept with onboarding, Berlin Card logic and clear guidance for everyday use cases.

Marketplace / Construction Industry

B2B machinery marketplace

A B2B marketplace for construction companies with trust signals, contract logic and clear request flows.

AI / Sustainability

Verda

An AI chat app for sustainable decisions with model routing, impact transparency and launch support.

Blockchain

Vision Crypto LLC

A crypto wallet that brings portfolio, transfers and market data for multiple chains into real-time workflows.

Social Media

Frynz

A social app for spontaneous meetups, live maps and event chats in a focused mobile experience.

Mobility / Fleet Management

Fleet management platform

An operational fleet platform for maintenance, costs, vehicle data and tasks across 20 to 500 vehicles.

Psychology

Prof. Dr. Oettingen

A mobile WOOP app that turns goal setting, motivation and reflection into a clear daily routine.

Sports Gaming / Fantasy Sports

Tentasy

A fantasy-tennis concept with team selection, league logic and a mobile community experience.

Education / Social Community

StudyNect

A campus app that connects students through interests, groups and communities.

Finance

1Up Capital GmbH

A finance platform that gives publishers predictable pre-financing and transparent payout workflows.

EdTech / School Administration

Akteo

A school-records platform that brings data, documents and workflows into one secure web system.

Industrial SaaS / Mechanical Engineering

Mechanical-engineering service portal

A service portal that unifies machines, tickets, spare parts and live data in one workflow.

Field Service / Trades & Mid-Market

Field-service platform

A field-service platform that connects dispatch, technicians, reports and knowledge data in real time.

Sport

not public

A training-camp app for groups, schedules and check-ins that simplifies on-site organization.

Fitness / HealthTech

not public

An app concept for connected gyms with check-in, live training, sleep tracking and goal management.

Events

APIS Events

A distinctive web presence that brings event formats, brand identity and inquiry paths into one clear flow.

SEO

not public

A technical SEO tool that combines crawling, issue analysis and prioritized recommendations in one dashboard.

By the numbers

This is hafencity.dev

15+ Experts

Engineers, designers, and strategists working as one practice from our Hamburg HQ.

50+ Clients

Companies across consumer, healthcare, and B2B trust us with their digital products. Long-term partnerships are the default.

97% Recommendation rate

Repeat engagements and references our buyers actually call. Trust compounds when delivery does.

50+ Launches

Custom mobile and web products shipped from concept to maintenance — owned end-to-end by our team.

100% In-house

Strategy, design, and engineering all live at our Hamburg HQ. One team, one project lead, accountable to you from kickoff to launch.

Since 2023

Helping companies ship digital products — and growing alongside the teams we work with.

References

What teams say about us

4.97/5on Sortlist

Die Agentur hat uns geholfen eine Webapp zubauen. Der Austausch mit der Agentur hat sich angefühlt, als hätten wir die Entwickler eigens im Team und nicht Extern. Immer sehr zeitnahe Rückmeldung und Updates.

Maximilian Seeburg

1Up Capital GmbH

Die Agentur hat uns geholfen eine App zu entwickeln und sie zu launchen. Schnelle und unkomplizierte Kommunikation. Schnelle Anpassung von Änderungen.

Stefan Reiner

SL spielend lernen GmbH

[...] sehr guten und kreativen Vorschläge wie man die App verbessern kann, und die unkomplizierte und direkte Zusammenarbeit. Auch haben sie sich nicht gescheut, extra Arbeit in die App zu stecken, damit diese mehr den Bedürfnissen der User entsprechen kann.

Prof. Dr. Gabriele Oettingen

WOOP

hafencity.dev hat uns geholfen ein SaaS-Tool im HR Umfeld aufzubauen und haben hier ausgezeichnete Arbeit geleistet. Die Umsetzung war perfekt und während der Konzeptphase war das Team ein kompetenter Sparringspartner und Impulsgeber.

Simon Schäfer

Folkz GmbH

[...] Das Team rund um Hauke hat sich sehr zügig in unser komplexes Projekt eingearbeitet, kluge Fragen gestellt und bereits im Kennenlerngespräch wichtige Aspekte durchdacht. Man merkt, dass hier echtes Interesse und viel Erfahrung auf Kundenseite zusammenkommen. [...]

Felix Nunn

PaarBalance GmbH

Development of a mobile app and a corresponding website for our project. From design to the final app, we've seen rapid progress and are pleased with the result. We've achieved over 100k downloads and have a satisfied community.

Jana

Go 428 LLC

Die Agentur hat uns geholfen eine Webapp zubauen. Der Austausch mit der Agentur hat sich angefühlt, als hätten wir die Entwickler eigens im Team und nicht Extern. Immer sehr zeitnahe Rückmeldung und Updates.

Maximilian Seeburg

1Up Capital GmbH

Die Agentur hat uns geholfen eine App zu entwickeln und sie zu launchen. Schnelle und unkomplizierte Kommunikation. Schnelle Anpassung von Änderungen.

Stefan Reiner

SL spielend lernen GmbH

[...] sehr guten und kreativen Vorschläge wie man die App verbessern kann, und die unkomplizierte und direkte Zusammenarbeit. Auch haben sie sich nicht gescheut, extra Arbeit in die App zu stecken, damit diese mehr den Bedürfnissen der User entsprechen kann.

Prof. Dr. Gabriele Oettingen

WOOP

hafencity.dev hat uns geholfen ein SaaS-Tool im HR Umfeld aufzubauen und haben hier ausgezeichnete Arbeit geleistet. Die Umsetzung war perfekt und während der Konzeptphase war das Team ein kompetenter Sparringspartner und Impulsgeber.

Simon Schäfer

Folkz GmbH

[...] Das Team rund um Hauke hat sich sehr zügig in unser komplexes Projekt eingearbeitet, kluge Fragen gestellt und bereits im Kennenlerngespräch wichtige Aspekte durchdacht. Man merkt, dass hier echtes Interesse und viel Erfahrung auf Kundenseite zusammenkommen. [...]

Felix Nunn

PaarBalance GmbH

Development of a mobile app and a corresponding website for our project. From design to the final app, we've seen rapid progress and are pleased with the result. We've achieved over 100k downloads and have a satisfied community.

Jana

Go 428 LLC

Partners who trust us

Next steps

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