PolarFoxx — IoT Temperature Monitoring
IoT platform for digital temperature monitoring with Bluetooth/LoRa sensors, Flutter apps, and automated HACCP documentation.

100%
HACCP Compliant
24/7
Real-time Monitoring
6+
Industries
0
Manual Temp Lists
About the Client
PolarFoxx.com GmbH is a German technology company specializing in automated temperature monitoring for the food industry. Their hardware product range includes LoRaFOXX (LoRa wireless thermometers with ~5km range), GFOXX Pro (Bluetooth data loggers for HACCP/GDP), and QR FOXX Reporting. The mission: "Never write temperature lists again." Made in Germany, hosted on Hetzner (ISO 9001).
The Challenge
PolarFoxx needed a technology partner to create a comprehensive digital ecosystem for their temperature monitoring devices — from sensor data collection through mobile applications to cloud-based reporting. The solution had to be HACCP and GDP compliant and work across industries like gastronomy, food manufacturing, logistics, and pharmaceuticals.
Our Solution
We developed native iOS and Android apps with Flutter, cloud infrastructure on Azure for data management and real-time alerts, and automated HACCP and GDP-compliant reports. The Bluetooth and LoRa-based sensor integration enables seamless sensor-to-cloud connectivity. The backend runs on Symfony with Elasticsearch for fast data queries.
Solution Highlights
- From sensor to analysis — everything in one platform
- Bluetooth and LoRa sensor integration for different use cases
- Automatic HACCP documentation replaces manual temperature logs
- Real-time alerts via email and phone for temperature deviations
- Cloud-based dashboard for centralized analysis and reporting
The Results
The solution enables organizations to completely eliminate manual temperature documentation, ensure regulatory compliance, and receive instant alerts. The mission: "Never write temperature lists again." The system serves gastronomy, food manufacturing, logistics, hospitality, pharmacies, and social care facilities.
What We Built
Sensor-to-Cloud
Seamless integration of Bluetooth and LoRa sensors via the mobile app directly to Azure Cloud. Measurement data is automatically captured, transmitted, and archived.
Mobile Apps (iOS & Android)
Native Flutter apps for temperature monitoring on smartphones. Bluetooth sensor pairing, real-time display, manual measurements, and task lists for the team.
Automated HACCP Reports
Legally compliant documentation is generated automatically — including temperature curves, threshold violations, and corrective actions. Audit-ready at the push of a button.
Real-time Alerts
Instant notification via email and phone for temperature deviations. Escalation chains configurable — from on-site staff to branch managers.
Web Dashboard
Central dashboard for branch managers and management. Overview of all locations, temperature trends, open tasks, and exportable reports.
Multi-Industry Solution
Ready for gastronomy, food production, logistics, hospitality, pharmacies, and social care — each with industry-specific compliance templates.
Project Insights
Visit live project“With GOLLE IT we found a partner that could technically deliver on our requirements for smart, IoT-based temperature monitoring. From the Bluetooth integration of our GFOXX sensors via app development to the cloud — the team understood our needs and turned them into a reliable, user-friendly solution.”
Christian Spiegelburg
Geschäftsführer, Polarfoxx GmbH


