Privacy Policy

Last updated: March 15, 2026

Introduction

4×4 Treadmill ("the App") is developed by Proglab. This privacy policy explains how we handle your data when you use the App.

Data Collection — The App

The App stores all workout data (heart rate samples, workout sessions, settings) locally on your device. We do not collect, transmit, or store any of your workout data on external servers.

• Heart Rate Data: Read from your Bluetooth heart rate sensor or Apple Watch during workouts. Stored locally on your device only.
• Location Data: If you grant permission, used to track distance and pace. Stored locally on your device only.
• Workout History: All workout sessions and statistics are stored locally in the app's data container.

Data Collection — This Website

This promotional website collects minimal data:

• Feedback Form: If you choose to submit feedback, the text you enter is stored on our server. We do not collect your name, email address, or IP address through the feedback form.

Bluetooth & Sensors

The App uses Bluetooth Low Energy (BLE) to connect to heart rate monitors. This connection is used solely to receive heart rate data during workouts. No data is sent to the sensor device.

Third-Party Services

The App does not integrate with any third-party analytics, advertising, or tracking services.

Data Sharing

We do not sell, share, or transfer any of your data to third parties.

Data Deletion

All App data can be deleted by removing the App from your device. Website feedback can be deleted upon request by contacting us.

Children's Privacy

The App is not directed at children under 13. We do not knowingly collect data from children.

Contact

If you have questions about this privacy policy, contact us at:

treadmill@proglab.no