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The app development process: From the idea to launch in...

App development • 23 January 2026

By Björn Groenewold3 min read
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How is an app created? Our guide explains the complete app development process from the first idea to the design and programming to the launch.

Digitalization is not an IT project—it is a business strategy.

Björn Groenewold, Managing Director, Groenewold IT Solutions

> Key Takeaway: The app development process is structured in six phases: idea validation, UX/UI design with wireframes and prototypes, technical development in sprints, quality assurance, App Store submission, and post-launch monitoring with iterative improvement.


The app development process: From idea to launch in 6 phases

Short: **From the first idea to the finished app in the store – the development of a mobile application is a complex undertaking.

**From the first idea to the finished app in the store – the development of a mobile application is a complex undertaking. A structured and transparent process is the key to success.

This article guides you through the six crucial phases of the app development process and shows you what happens in every step. **

Phase 1: Discovery & Strategy

Short: Everything starts with an idea.

Everything starts with an idea. In the discovery phase, this idea is concreted and tested for its marketability. Together with the App Agency, the targets are defined, the target group is analyzed and the core functions of the app are defined.

The result is a detailed concept and a specification that serves as a timetable for the entire project.

Phase 2: UI/UX Design

Short: In this phase, the app gets her face.

In this phase, the app gets her face. UX designers first create Wireframes (wire grid models) to plan the structure and user flow. The visual design is then defined in the UI design. The result is a clickable prototype that already gives a realistic feeling for the finished app.

Phase 3: Development

Now the app is programmed. This phase is generally divided into agile sprints. The backend (servers, databases, APIs) and the frontend (the visible user interface) are developed in parallel. Regular demo terminals ensure that you can track progress and give feedback early on.

Phase 4: Testing & Quality Assurance

Short: Before the app goes to the users, it is checked for heart and kidneys.

Before the app goes to the users, it is checked for heart and kidneys. A team of testers is looking for bugs (Bugs), checks the functionality on different devices and ensures that the app is stable and performant.

Phase 5: Launch

Short: The app is submitted to the Apple App Store and Google Play Store for release.

The app is submitted to the Apple App Store and Google Play Store for release. The Agency supports you in creating store entries and complying with the respective policies.

Phase 6: Maintenance & Development

Short: After the launch, the work is not over.

After the launch, the work is not over. Operating system updates, vulnerabilities and user feedback require continuous maintenance and further development of the app. A maintenance contract with the agency ensures the long-term success of your application.

**Plan an app project and look for a partner that accompanies you through all phases? * *


**Find out our [mobile and web development](/services/mobile and web development) and how we can support your company.

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References and further reading

Short: The following independent references complement the topics in this article:

The following independent references complement the topics in this article:

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About the author

Björn Groenewold
Björn Groenewold(Dipl.-Inf.)

Managing Director of Groenewold IT Solutions GmbH and Hyperspace GmbH

For over 15 years Björn Groenewold has been developing software solutions for the mid-market. He is Managing Director of Groenewold IT Solutions GmbH and Hyperspace GmbH. As founder of Groenewold IT Solutions he has successfully supported more than 250 projects – from legacy modernisation to AI integration.

Software ArchitectureAI IntegrationLegacy ModernisationProject Management

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This article is in the App development topic. In our blog overview you will find all articles; under category App development more posts on this subject.

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