appzept – apps & digital concepts made in Germany

Your idea.
Our app.

We build thoughtful, modern applications – from the first concept to the finished product. Tailored, dependable and built to last.

The ground we cover

A look at the topics and areas we work with day to day.

Mobile app development

A core focus of our work sits around mobile applications for iOS and Android – both cross-platform and native.

Web applications

Web applications and Progressive Web Apps are among the areas we work with on a regular basis.

Concept & ideas

Thinking through concepts, user experience and technical planning is a fixed part of our development process.

Launch & evolution

App store releases, monitoring and ongoing development are part of everyday life with our own products.

What we work with

An overview of the tools and technologies we reach for regularly in our daily work.

Flutter & Dart

Cross-platform

Supabase

Backend & auth

PostgreSQL

Database

Docker

Containers

PWA

Progressive Web Apps

iOS & Android

Mobile platforms

GDPR focus

Data protection

Git & CI/CD

Version control

Our own apps

We build our own digital products that offer real value – thoughtful, modern and made in Germany.

Mietabrechner logo
Live

Mietabrechner

Utility bills settled in minutes

The app for landlords in Germany, Austria and Switzerland. Record operating costs, allocate them automatically and generate finished PDF statements – accurate to the cent, in line with the BetrKV and GDPR-compliant.

Landlords BetrKV PDF export Offline GDPR
In the pipeline

BiteAlert

The digital fishing log for hobby anglers

Save spots, document catches, keep track of the months with the best conditions. BiteAlert is your personal fishing diary – with photo, location and every detail that matters.

Fishing Spots Catch log Photos Android
Brautkompass logo
Live

Brautkompass

Your big day — perfectly planned

The digital companion for engaged couples: tasks, budget, guest list and vendors in one app — so you can enjoy your wedding day instead of managing it.

Wedding Planning Budget Flutter
In the pipeline

VereinsPilot

Club management for modern associations

The app for clubs that want to administrate less and create more. Members, fees, communication and documents – all in one place, GDPR-compliant and without the spreadsheet chaos.

Clubs Member management Flutter GDPR
Live

DSGVO-Wächter

A privacy check for your own website

The Chrome extension records what happens when a page loads: which third parties are contacted, which cookies and storage entries appear and which security headers are missing – each with its offset from the page start. Built as a regression test before every deploy, not as legal advice.

Chrome extension Privacy Security headers Report

How we approach a project

A look at the phases that typically shape the development of our own products.

Idea & conversation

It always starts with a thought. We take the time to understand it, question it and put it in context together.

Concept & sketch

Then comes the conceptual phase: user flows, structures and technical constraints are sketched out.

Development

During implementation a working product takes shape step by step – iteratively, with a focus on quality and maintainability.

Release

Testing, polish and the release to the stores or the web – accompanied by documentation and monitoring.

Think digital,
build it smart.

appzept stands for the combination of app development and well-considered concepts. We build digital products that work – technically, and for the people using them.

With experience in modern technologies and an eye for good design, we create solutions that impress and hold up over the long run.

Apps
Our own products
Flutter
Cross-platform
Supabase
Cloud backend
Concept
From idea to product
appzept logo – app development from Pulheim

Good to know

Answers to the questions we hear again and again – transparent and without marketing fluff.

Does appzept also build apps for clients?
appzept currently focuses on developing its own products. Whether working together makes sense in a specific case is best clarified in a personal conversation.
Which platforms do you prefer?
In our own projects we mainly rely on cross-platform approaches with Flutter, so that iOS, Android and the web can be served from a shared codebase. Depending on the requirements, we also use Progressive Web Apps.
Where is the data stored?
For our own apps we use backend infrastructure that can be operated in a GDPR-compliant way – as a rule on servers within the EU. Details can be found in the privacy policy of each individual product.
How long does it take to build an app?
That depends heavily on the scope, the complexity and the range of features. Smaller projects can be delivered within a few weeks, more extensive products need correspondingly more time. A reliable estimate is only possible case by case.
Which languages do you work in?
Our day-to-day business runs in German, and communication in English is possible as well. The apps themselves can generally be built multilingual.
Is appzept a large team?
appzept is a small, owner-managed company. That means short paths, clear communication and direct contact – without detours through several departments.

Let's talk.

Do you have an idea or a project? Drop us a line – we look forward to hearing from you.

Location

Görreshofstr. 9, 50259 Pulheim, Germany

Availability

Mon – Fri, 9:00 – 18:00 (CET)

Your details are used solely to process your enquiry and are sent to us by email – they are not passed on to third parties. For more information see our privacy policy.