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GOLLE IT

Your software boutique from Frankfurt. For over 16 years, we've been building Shopware plugins, apps, and web platforms for mid-market businesses.

hello@golle-it.de+49 69 348 789 10 - 0
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60385 Frankfurt am Main

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All Case Studies
App Development|PolarFoxx

PolarFoxx — IoT Temperature Monitoring

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

Ongoing partnership
FlutterIoTSymfonyAzure
PolarFoxx — IoT Temperature Monitoring

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).

01 · Starting Point

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.

02 · Implementation

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
03 · Results

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

01

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.

02

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.

03

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.

04

Real-time Alerts

Instant notification via email and phone for temperature deviations. Escalation chains configurable — from on-site staff to branch managers.

05

Web Dashboard

Central dashboard for branch managers and management. Overview of all locations, temperature trends, open tasks, and exportable reports.

06

Multi-Industry Solution

Ready for gastronomy, food production, logistics, hospitality, pharmacies, and social care — each with industry-specific compliance templates.

Project Insights

Technology Stack
FlutterPHPSymfonyVue.jsDockerKubernetesAzureElasticsearchBluetoothLoRa

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