Services

appamass builds product systems where mobile, web, and AI are designed as one operating architecture. The point is not another channel, but one product body where user experience, operations, and automation move through the same system.

The work starts with the surface users touch: a native-feeling app, a fast React web product, or an agent workflow that needs a human-controlled interface.

Behind that surface sit shared TypeScript logic, cloud data, release discipline, and agents that can act without becoming opaque.

React Native App Development

React Native
Expo

React Native app development for owners, founders, and product teams that do not want to fund iOS and Android as two separate projects. appamass builds mobile products with Expo, EAS builds, a TypeScript core, native device integration, and an architecture that keeps releases, maintenance, security, and future AI workflows under control.

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Web Development

React
Vite

Web development with React and Vite for teams that need more than a website: a fast, indexable, maintainable web product system. appamass connects public pages, SEO structure, SSR, dashboards, admin tools, product UI, and AI operator interfaces in an architecture that stays readable for users, Google, and internal teams.

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AI (Multi) Agent Development

Google ADK
Vertex AI
GCP

AI agent development for companies that want AI as a controlled product workflow, not a chatbot demo. appamass builds multi-agent systems with Google ADK, Vertex AI, and GCP: tool calling, memory, retrieval, evaluation, observability, human review, and interfaces where teams can inspect decisions and take over.

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The All-in-One Advantage

Our strongest performance is not the sum of individual components, but their seamless integration. We bundle mobile apps, web applications, and AI systems in a common architecture with a unified code base.

  • eliminates data silos and redundant logic

  • significantly reduces development and administration costs

  • creates a consistent user experience on desktop and mobile

By combining modern React frontend technologies with scalable backend infrastructure, integrated AI agents, and cloud-native architecture, we create:

  • automated, intelligent workflows

  • high-performance, maintainable systems

  • an intuitive UI/UX with stable high performance

What we do

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The System Advantage in Detail

Real-time Synchronization: User data, profiles, and states are synchronized in real time between mobile app (React Native), web app, and dashboard (React). No delays, no double data storage.

Central Control: Content, user rights, and business rules are centrally controlled via a tailor-made admin panel. Changes can be rolled out immediately to all end devices via over-the-air update – without app store detours.

Integrated Intelligence: Our AI agents are not an add-on but part of the system. They access the central data backbone directly, automate processes in the background, and make results immediately visible in app and web.

Single Source of Truth (SSOT): One backend. One database. One logic. Instead of connecting three fragile systems via interfaces, we build a robust platform that reduces complexity and enables growth.

We do not develop isolated apps. We create scalable corporate values. Through this approach, we reduce development costs by 40–70% compared to separate individual developments – while at the same time massively reducing maintenance effort.