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Custom app development for iOS, Android & cross-platform

Your partner for high-performance mobile apps. From idea to App Store launch.
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< app development by 426 >

Mobile digitalization is a key competitive factor today. With 426, you gain an experienced technology partner who transforms your vision into a high-performance, scalable mobile application – precisely tailored to your business needs. Whether it’s an internal business app, a customer portal, or an innovative product app, we support you with strategic consulting, deep tech expertise and a structured, transparent development process.

APP-DEVELOPMENT SERVICES:

  • Native app development
  • Cross-plattform app development
  • Business apps & enterprise solutions
  • Custom product apps

< our expertise >

Our expertise: enterprise-grade app development

We develop robust and future-proof mobile apps for businesses with complex requirements for performance, security, scalability, and system integration.

Our services at a glance:

  • Native app development:
    Purpose-built for iOS (Swift, Objective-C) or Android (Kotlin, Java). Ideal when maximum performance, access to native APIs, or platform-specific compliance are required.
  • Cross-platform app development:
    Using frameworks like Xamarin, Flutter, or React Native, we build one app that runs on multiple platforms – accelerating time-to-market and optimizing resource use.
  • Business apps & enterprise solutions:
    Secure mobile solutions for internal use (e.g. field sales, logistics, reporting), seamlessly integrated into ERP, CRM, or third-party systems via API.
  • Custom product apps:
    Extend your digital services with intuitive, stable mobile apps that deliver a great user experience and are built on a solid, scalable architecture.

< structured & transparent >

Our development
process

We start by understanding your business objectives, user needs and technical environment. Based on that, we define the right architecture and tech stack.

Agile development with sprint planning, code reviews and continuous testing. Where required, we integrate external systems (e.g. SAP, Salesforce, Azure AD) via secure APIs.

Rigorous testing across devices, security audits, and optional staged rollouts for selected users or internal pilot groups.

We support you through the publishing process on the App Store or via enterprise distribution. Post-launch, we handle updates, monitoring, and further development.

< why choose 426 >

Technology stack &
development standardss

Our technology choices are always aligned with your specific goals and context:

  • Languages & frameworks: Swift, Kotlin, Java, React Native, Flutter, Xamarin, Nuxt
  • Backends & APIs: .NET, Node.js, Firebase, REST, GraphQL
  • CI/CD & DevOps: GitLab, Azure DevOps, Docker, Kubernetes
  • Security & compliance: GDPR-compliant, SSO/2FA, MDM-ready
  • Deployment platforms: Apple App Store, Google Play, Private (Enterprise) Distribution

< case studies >

Successful app projects with 426

Combeenation

<Combeenation>

#tech #appdevelopment

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Bioexpress

<Bioexpress>

#food #ecommerce #shopware

GO TO PROJECT
Unifix

<Unifix>

#industry #b2becommerce #shopware

 GO TO PROJECT
Mila - Cow - milk - South Tyrol

<Mila>

#food #b2becommerce #shopware

 GO TO PROJECT

Let’s plan your app together – book a personal consultation with 426.

CONTACT US
Our expertise
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