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IoT and Smart Home Development: Apps and backends for connected devices

We develop mobile apps and cloud backends for IoT and smart home products – from device firmware integration to scalable cloud platforms.

IoT & Smart Home Development

Our IoT and smart home services

From BLE and WiFi device control to MQTT backends and AWS IoT or Azure IoT Hub: we build the app and cloud side of your IoT product. We focus on secure communication, device management, scalability and compliance (e.g. GDPR). Whether you are a manufacturer bringing a new product to market or a brand extending into smart home – we deliver the software layer.

  • Mobile apps for device control (iOS & Android)
  • BLE, WiFi and MQTT integration
  • AWS IoT, Azure IoT Hub, Google Cloud IoT
  • Device management and OTA updates
  • Data privacy and GDPR-compliant architecture

What we deliver: from device to cloud

IoT and smart home development requires more than a single app: devices must pair reliably, data must flow to your backend, and users expect a smooth experience across phones and tablets. We design the full stack – mobile apps for setup and control, APIs and cloud services for device management and analytics, and secure OTA update flows so you can ship firmware improvements without recalls. We use BLE, WiFi and MQTT where they fit best and integrate with AWS IoT Core, Azure IoT Hub or Google Cloud IoT so you are not locked into proprietary platforms.

Data privacy is non-negotiable, especially for smart home and consumer devices. We architect for GDPR from the start: data minimisation, clear consent flows and hosting in the EU where required. Manufacturers and brands in Germany and the EU often need one partner who handles both the app and the backend – we deliver that with transparent project management and documentation. Many of our IoT projects start with a pilot product or a single use case and then scale to more devices or regions; we build for that from day one.

Whether you are launching a new connected product or modernising an existing one, we support you from concept and prototyping through to production and ongoing updates. Get in touch for a free consultation – we discuss your use case, technical constraints and timeline and outline a realistic scope and quote.

Discuss your project

Frequently Asked Questions

IoT & Smart Home Development

Scope, Privacy & Timeline

What can you build for IoT and smart home?

Apps and backends for connected products: device management, dashboards, automation rules, integrations with voice assistants and third-party ecosystems. We design for scalability and long-term operation.

How do you handle data privacy?

We design for GDPR from the start: data minimisation, clear consent flows and EU hosting where required. Compliance is part of the architecture, not an afterthought.

Can you work with our existing devices?

Yes. We integrate existing product lines and protocols and can modernise legacy devices with new firmware or gateways.

How long does an IoT project take?

Pilots often a few months; full product rollouts longer. We work in phases so you can launch step by step and scale based on feedback.

Björn Groenewold – Geschäftsführer Groenewold IT Solutions

Discuss IoT or smart home project

We discuss use case, technical constraints and timeline.

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Your Next Step

Tell us briefly what you have in mind.

We'll analyze your requirements and present concrete options – transparent and without obligation.

30 min strategy call – 100% free & non-binding