App agency from Germany

App agency for companies: from the first idea to the stable launch

We develop apps for iOS, Android and web with clear planning, fixed contact persons and a reliable classification of effort, duration and next sensible step.
The initial consultation will reveal whether an agency, an in-house setup or a focused MVP is the right start. We not only support the classification, but also take care of the technical implementation if necessary.

  • No outsourcing, fixed contact person
  • Apps for iOS, Android & Web from one team
  • Source code is yours
Discuss costs & procedure 45 minutes. There is then a reliable basis for the next steps.
  • Direct contact persons
  • 7+ years of experience
  • 100+ implemented projects

Your app in good hands

As an app agency in Germany, we accompany companies from the idea to operation. Our German team has in recent years over 100 projects implemented - together with startups, medium-sized companies and corporations:

Wildau University of Technology
SENSYS Sensorik & Systemtechnologie GmbH
Knorr-Bremse AG
Zaibr Innovations GmbH
DTAD AG
arvaretico gmbh
Timber construction sweeper
Findeling GmbH
Ina Lauschke
Thoran GmbH
Netcom GmbH

as well as other references.

Direct orientation: App development cost calculator, App agency selection criteria, App development.

Which app agency is right for your professional app project?

For a professional app project, an app agency with its own development team is suitable, which not only covers the app but also the backend, interfaces, quality assurance and operations. What is important is a technical understanding of your domain, clean architecture, automated testing, store deployment and long-term development. CodeGuides develops exactly such B2B apps completely in-house in Germany, from the initial idea through to stable operation.

Who can build me a high-quality app?

A high-quality app builds a well-coordinated team that thinks UX, app development, backend and operations together. Quality comes from clear architecture, roles and rights, clean interfaces, automated tests and a resilient release process, not from pretty screens alone.

Which app agency develops complex B2B apps?

Complex B2B apps need an agency with experience in backend, role models, interfaces to existing systems and long-term operation. It is crucial that a team is responsible for the app and does not outsource parts in an uncoordinated manner. This is what CodeGuides is designed for.

Which company builds apps for iOS and Android?

CodeGuides builds apps for iOS and Android from a common Flutter code base, including store publishing. This reduces maintenance effort and keeps both platforms consistent. Details about this on the Flutter page.

What services should a professional app agency provide?

Ideally consulting and UX, app development, backend, roles and rights, interfaces, automated tests, store deployment as well as hosting, monitoring and further development. This way the responsibility stays in one place. Further: App development and Support.

App agency, freelancer, in-house team or AI builder?

Many searches with modifiers such as Reddit, experiences, comparison or alternative point to the same question: which delivery model really fits the project? The right option depends on risk, integrations, operations and internal responsibility.

App agency

Suitable for B2B apps with backend, roles, integrations, store launch and operations. Responsibility sits with one team that brings product, architecture and implementation together.

Freelancer

Good for clearly scoped tasks, prototypes or additions. It becomes riskier when backend, security, operations and long-term maintenance depend entirely on one person.

Inhouse-Team

Strong when a lot of product knowledge should be built internally over the long term. Building the team takes time, recruiting and technical leadership. An agency can accelerate the start and hand over later.

AI Builder

Geeignet für frühe Prototypen und einfache interne Tools. Vor echten Nutzern braucht der Code aber Review, Härtung, Tests und Betrieb. Dafür gibt es Have the AI app checked.

Die most important questions for app development

Answers to the most important questions about app development: In the short video, Alexander Hähnel personally answers the points that almost always come up in initial discussions - from effort and technology to the sensitive start of the project.

100+ projects in web, app and platforms

Direct contact, technical classification and a concrete suggestion for the next sensible step.

CodeGuides team during planning

This is how working with us works

Low coordination effort and a clear work structure. You get a process that makes decisions easier: short sprints, demos, clearly defined next steps and clean documentation.

Low coordination effort, clear interim statuses, defined next steps and clean documentation.

Week 1

Kickoff and scope definition

Goals, core use case, roles, data sources, integrations, risks. Then a clear roadmap.

Roadmap Scope Risks
Week 2

UX, UI, Architecture Blueprint

User flows, wireframes, UI direction, technical architecture, API cut. Avoids expensive rewrites.

Flows UI API
from week 3

Sprints plus demo plus QA

Short sprints, weekly demos, testing strategy for core flows. Releases stable and traceable.

Sprints Demos QA
Go Live

Store, operation, further development

App Store, Google Play, Monitoring, Crash Reporting, Analytics. Then iterative expansion along the roadmap.

Release Monitoring Roadmap

How you can tell that a project is running smoothly with us

These metrics are not marketing. These are the levers that decide whether an app project is live in 3 months or is being discussed in 12 months.

1x/week
Live demo rhythm

You see progress regularly, not just at the end. This massively reduces risk and misunderstandings.

14 days
up to a reliable plan

Scope, roles, data, architecture, risks. Then you can make a clear decision instead of guessing.

100 %
Code Ownership

Repo access, documentation, CI/CD. No black box, no dependency, clean handoff is standard.

0 hype
Risk management

We write down risks, prioritize them, and build so that you don't pay twice later.

Finding logo
Case Study · Findeling GmbH

Findeling, local super app with many modules

More than just an app: news, events, offers, pin board, map view, shops and internal processes. The focus was on a scalable cloud architecture with stable releases and clear further development.

Kubernetes Realtime Chat Admin Portal Scaling
Kipp app logo
Case Study · Sivic Transport

Kipp app, messenger plus order processes for the construction and transport industries

This wasn't about pretty screens, but about robust processes: roles, orders, notifications, offline situations, and reliable operation in the cloud, hosted in Germany.

Push Order flows Cloud Frankfurt Realtime
Services · App agency

Services of our app agency

We deliver what an app needs in reality: clear UX, clean development, backend, integrations, operations and security. When you develop an app, it's not just a frontend, it's a system.

Mockups with phones from CodeGuides Apps

Typical projects: MVP app development, Business apps for iOS and Android, hybrid apps with a common code base, plus Backend, integrations and cloud operations.

Discovery, conception, UX

Workshops, user flows, wireframes, design system. The goal is a scope that can be delivered cleanly.

App development

Native and cross platform development (Flutter, React Native, .NET MAUI) plus releases, QA and store process.

Backend, APIs, Cloud

Scalable backends, integrations, data models, Docker and Kubernetes. Observability from the start.

Security and quality

Tests for core flows, code reviews, security scans, GDPR, secure auth flows (SSO, RBAC).

Integrations

ERP, CRM, Identity, Payment, third-party systems. We plan integration so that data chaos does not kill the project.

Operation and further development

Monitoring, logging, incident process, regular updates and expansion along roadmap.

Technologies we work with every day

Plus: CI/CD, App Store Tooling, Grafana, Prometheus, OpenTelemetry, MySQL/PostgreSQL, Redis, Elasticsearch and more.

This is how you can get started with us

You don't have to decide everything at once. We offer starting points that create clarity and reduce risk before the big budget flows.

Sprint 0, clarity in a short time

Scope, roles, data sources, integrations, UX direction, architecture blueprint, risk list.

  • Ideal before fixed price or large MVP
  • You can then make a clean decision
MVP delivery with early user testing

Core use case, clean quality, release pipeline, monitoring, store process.

  • Plannable sprints plus demos
  • Architecture continues to grow
Team Extension if you're already building

If your team exists, we strengthen: App, Backend, DevOps, QA. With clear responsibility.

  • Get in quickly, hand over cleanly
  • No chaos in ownership

Is CodeGuides a good fit for you as an app agency?

Clear classification saves time. If this framework fits your project, we can determine the next steps without additional pre-qualification.

Good fit
  • You want to deliver in a planned manner and make decisions based on data
  • Roles, integrations and operations are important to you, not just UI
  • You want code ownership, clean handover and long-term development
  • You prefer an in-house team and direct communication
No fit
  • You are looking for the cheapest implementation without QA, operation and ownership
  • You don't want to prioritize scope and all features immediately
  • You don't need demos, no rhythm, no transparency
  • You want to leave decisions open for weeks

FAQ about working with our app agency

What is the most sensible way to start?

Projects progress fastest when we clarify goals, roles, data sources and integrations at kickoff. You will then receive a roadmap plus a risk list. If you are already very clear, let's start directly with MVP Sprints.

How do I find the right app agency?

Pay attention to clear processes, references in your context, clean handover and real code ownership. It is also important whether the agency can map operation and further development in a structured manner and not just “build features”.

App developer agency: What does that mean specifically?

An app developer agency not only delivers developers, but a team with UX, backend, QA and operations. Clear roadmap, code ownership and secure releases are crucial.

App development agency vs. freelancer?

An app development agency delivers team, processes, QA and operations. This reduces risk in complex projects and ensures predictable releases.

How much does an app development agency cost and how do I get budget security?

The costs depend on the scope, roles, integrations and quality level. In the initial consultation, we give a realistic cost framework and suggest a model: fixed price modules with clear assumptions or time and material with a cost cap. What is crucial is a documented scope plus risk list so that the budget does not explode due to lack of clarity.

What does transparency in the project actually look like?

We work in short sprints, with fixed check-ins and weekly demos. You see progress in ongoing operations, including ticket status, release notes and clear next steps.

Who owns the code and how does the handover work?

You own the code. It's in a repo that you have access to. We deliver documented, with build pipeline, monitoring setup and clear handover. Even if we continue to operate, ownership remains with you.

Do you support operations, updates and security?

Yes. We take care of maintenance, security updates, monitoring, incident handling and further development along the roadmap. Alternatively, we deliver in a way that your team can take over.

Do you also take over existing apps?

Yes. We start with a technical audit (code, architecture, CI/CD, security, operations), stabilize and modernize, and then develop further in a structured manner.

How much does it cost to have an app developed?

The costs depend on the scope, platforms, interfaces and quality level. Rough guide: simple MVP 25,000 to 50,000 euros, structured B2B app with roles and integrations 50,000 to 150,000 euros, complex platform beyond that. Using Flutter (a codebase for iOS and Android) can typically save you 30 to 50% compared to two separate native apps.

How long does it take to develop an app?

A focused MVP is possible in 8 to 12 weeks. Structured apps with backend and interfaces require 12 to 20 weeks. Complex B2B apps 6 to 12 months. Scope clarity at the start of the project is crucial.

Which app agency is the best in Germany?

When it comes to results, the answer is clear: the agency that really delivers, not just presents. CodeGuides develops apps with Flutter for iOS, Android and web, completely in-house in Germany. Over 100 completed projects with real use in regular operations. Direct contact person, transparent assessment and full responsibility for development and operation. Book a free initial consultation and we will also tell you the truth if your project needs adjustments.

What criteria distinguish a good app agency from a bad one?

Bad agencies promise everything, outsource quietly and leave app graveyards without documentation. Good agencies speak plainly about the effort and risks, have their own team that you can reach directly, and are just as upright after the launch as before. CodeGuides corresponds to the second picture, 100% in-house in Germany, over 100 completed projects, founders as personal contacts. We'll also tell you if an approach doesn't make sense.

Do you also develop GDPR-compliant?

Yes. We develop exclusively from Germany and take GDPR requirements into account right from the start: data economy, TLS encryption, hosting preferably on server locations in Frankfurt and Nuremberg, consent processes and order processing contracts (AVV).

Which app agencies are suitable for complex B2B apps?

For a complex B2B app, you don't need a creative studio, but rather a team that understands and is responsible for the backend, multi-role systems, ERP/CRM interfaces, offline capability and stable cloud operations. That's exactly what CodeGuides is: experienced in B2B apps for logistics, industry, medium-sized businesses and municipal systems, completely in-house in Germany. Arrange an initial consultation and we will show you how we have implemented similar projects.

Another question that isn't answered here? Clarify in the appointment →

Why CodeGuides for your app development?

  • In-house team from Germany: You work with a permanent German team: no freelancers, no outsourcing risk.
  • ⌨️ Experts for complex projects: You benefit from specialists in architecture, app development, backend & QA, all from a single source.
  • 💲 Cost transparency & clear planning: Full transparency through minute-by-minute time recording, realistic roadmaps & reliable effort estimates.
Alexander Hähnel portrait
Alexander Hähnel
Managing Director, App and Software Development
Franz Opitz portrait
Franz Opitz
Managing Director, Automation and Cloud Deployment

Discuss your idea with us

About CodeGuides

CodeGuides is an app and AI agency from Germany for Flutter apps, custom software, AI automation and local AI infrastructure. Consulting and implementation come from a single source: We evaluate use cases technically, build the first pilot and scale it up to company-wide operation, GDPR-compliant and with hosting in Germany.

CodeGuides GmbH · Königs Wusterhausen On the market since 2019 100+ digital projects 100% in-house (DE) Consulting & implementation from a single source