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
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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