Software agency in Cologne — since 2009

Custom software in weeks, not months.

We take the fastest route that actually solves your problem — ready-made building blocks, custom development, or the two combined. Which one fits, we tell you in the first conversation.

Have your process reviewed See our work
  • In Cologne since 2009
  • Deutsche Bahn Connect
  • Karlsruher Verkehrsverbund
  • Rheinwerk Verlag
  • Public sector
  • Mid-sized companies

What do you want to build?

Three routes, depending on how bespoke your plan really is. Which one fits depends on your requirement alone — not on what we happen to want to sell.

A process needs to go digital

On our platform

Forms, data, internal applications, portals, approvals, automated steps. Much of it needs no classic software development and is running within weeks.

How it works

Both together

Platform plus custom part

Custom where it makes a difference, ready-made where standards are enough. For your own interfaces, apps or integrations — the most common shape our projects take.

How we combine

A product of your own

Built from scratch

When architecture, scale, technology or business logic genuinely have to be bespoke. Built the way we did for Deutsche Bahn and Karlsruher Verkehrsverbund.

What we build

Want to digitise a process?

Describe briefly how the process runs today and what should get better. We look at it and tell you whether ApptiveGrid is enough, a custom extension makes sense, or software of your own would be the better answer.

Have your process reviewed

No obligation. We recommend the route that makes sense for your plans.

Typical projects

What we work on most often

Replace spreadsheet processes

Tables travelling by email, where nobody knows which version counts.

Digitise forms and inspections

Captured in the field, offline too. Inspection records, defects, sign-offs.

Automate approvals

Leave requests, orders, damage reports — with notifications to the right people.

Build customer and staff portals

One way in for everyone involved. Each sees exactly what they may see.

Connect existing systems

ERP, inventory, time tracking — including without an open interface in the legacy system.

Build custom apps

Native and cross-platform apps, when it has to be an app of your own.

Bring AI into existing processes

Read documents, suggest entries, pre-sort routine cases.

Why it is faster

We do not start from zero

Fifteen years of project work produced ApptiveGrid — our own platform. Data models, permissions, forms, approvals and reporting are solved in it. Exactly the parts that otherwise get rebuilt in every project, before anyone sees anything.

How that fits together

A classic custom project

Months

Login · Database · Permissions · Forms · Reporting — five building blocks that look the same in every project and get rebuilt every time anyway.

With ZWEIDENKER

Weeks

The same building blocks — already there. The work starts where your problem starts.

In addition

Consulting & Training

When the direction has to be settled before anything gets built: digitisation and innovation consulting, innovation processes, Pharo consulting and in-house training.

Go to Consulting & Training

What clients say

„Mit ZWEIDENKER sind wir innerhalb weniger Wochen vom ersten Gespräch zum gewünschten Ergebnis gelangt. Die Zusammenarbeit war unkompliziert, professionell und sehr zuverlässig. Wir wurden rundherum, also in Sachen PM, Konzeption und Umsetzung äußerst kompetent betreut.“

Marvin Kassühlke Product Owner, bloXmove

„Besonders hat sich das ZWEIDENKER-Team durch kurze und unbürokratische Kommunikationswege und eine flexible Arbeitsweise ausgezeichnet. Aufgrund der fundierten Expertise im Bereich App-Entwicklung haben wir gemeinsam eine tolle Lösung für unsere Förderer entwickelt.“

Professor Dr. Wolfgang von Keitz Vorstand, Iran-Darbandi-Stiftung

„Wir haben mit ZWEIDENKER einen zuverlässigen Partner gefunden, mit dem die Arbeit als agiles Team sehr viel Spaß gemacht hat. Vielen Dank für die großartige Zusammenarbeit!“

Simon Woker Product Owner Mobile Apps, Deutsche Bahn Connect GmbH

„Neben der offensichtlichen Expertise in der App-Entwicklung hat uns das ZWEIDENKER-Team besonders mit fundiertem Wissen und Erfahrungen in der Mobilitäts- und Transportbranche beeindruckt. Dieses Fachwissen und der agile Entwicklungsprozess ermöglicht die Umsetzung eines bisher deutschlandweit einzigartigen und innovativen Projekts im Bereich Tarifentwicklung.“

Stefanie Herrmann Leiterin Tarifmanagement, Karlsruher Verkehrsverbund GmbH (KVV)

Quotes shown in the original German.

Not sure what you need?

You describe your process briefly. We tell you whether ApptiveGrid is enough, a custom extension makes sense, or bespoke software is the better answer.

Have your process reviewed Or look at ApptiveGrid yourself

No obligation. We recommend the route that makes sense for your plans.