Sozialstadtplan Bremen

Case · Non-Profit & Social

About the project

The Sozialstadtplan Bremen is a cross-provider, cross-denominational guide to aid services in Bremen — soup kitchens, emergency shelters, clothing banks, counselling centres, cold-weather buses, drinking-water fountains. Diakonie Bremen has published it since 2020; together with appfarms it was rebuilt in 2024/25 as an offline-capable, multilingual Progressive Web App, funded by donations from the Wilhelm Kaisen Bürgermahl.

For us the brief was clear: software meant to reach people in need has to work where internet, devices and time are scarce. We designed the architecture and tech stack around exactly that.

App icon of Sozialstadtplan Bremen — white Diakonie crown logo inside a purple map pin

Live at sozialstadtplan.de — as an installable Progressive Web App for iOS, Android and desktop. No app store, no sign-up, no account: open, add to home screen, done.

A look inside the app

Sozialstadtplan Bremen — map view with aid services in central Bremen
Map view of all aid services — filters, radius search and current-location lookup.
Detail view of an offer: „Für Obdachlose on Tour“ with service icons and description
Per-offer detail view — services, opening times and description at a glance.
Side menu with language switch, font sizes and push notifications
Multilingual UI, adjustable font sizes and push notifications — accessibility built in.
iOS dialog for adding the PWA to the home screen
Install as a PWA: one tap to the home screen — no detour through an app store.

Press & background

Challenge

Around 600 people in Bremen live on the streets and one in five Bremen residents lives below the poverty line. Numerous aid services exist, but they are hard to find for those who need them. The original Sozialstadtplan only existed as a printed brochure — difficult to keep up to date and of limited use to people without a fixed address or stable data plan. The brief: a digital solution that works without reliable internet, on older devices, and in more than one language.

Solution

appfarms built the Sozialstadtplan as a Progressive Web App — installable like a native app, with a service worker for offline use and a lightweight map engine that runs smoothly on older hardware. A proximity search surfaces aid services within walking distance, an English version lowers the language barrier for refugees and tourists in need. An editorial CMS lets the Diakonie team manage services, opening hours and seasonal closures (such as public holidays) on their own — no developer involvement required.

Outcome

The digital Sozialstadtplan launched at the end of 2024 alongside a communications campaign. Across providers and denominations, it lists more than 100 aid services — from soup kitchens and emergency shelters to medical care. Social workers also use it as a daily tool. The print version remains in place and is fed from the same CMS. appfarms delivered parts of the project pro bono — as a contribution to a more social Bremen.

„With the digital Sozialstadtplan we make it faster and easier for homeless and low-income people — and everyone supporting them — to find the social services Bremen has to offer."

Swantje SuchlandPR & Fundraising Officer, Diakonie Bremen

Frequently asked questions

What is a Progressive Web App (PWA) and why was it the right fit?

A PWA behaves like a native app — installable on the home screen and usable offline — without the friction of an app store. A perfect fit for an audience for whom storage, mobile data and account sign-ups are often blockers.

How does the map work offline?

A service worker caches map tiles, aid-service data and the UI on the device. After the first visit the app runs without an internet connection, and updates are fetched in the background once connectivity is restored.

Who keeps the listings up to date?

The Diakonie Bremen team maintains services, opening hours, closures and editorial content via a CMS — no developer handover required. That keeps the data current.