Legal Last updated January 15, 2026

Privacy Policy

Training Stack — Run & Strength Tracker

TL;DR — The short version

Overview

Training Stack ("the App") is a fitness tracking application that helps you track running workouts and strength training. Your privacy is important to us. This policy explains what data the App accesses and how it is used.

Data We Access

Health & Fitness Data (via Apple HealthKit)

The App reads the following data from Apple Health:

The App writes the following data to Apple Health:

Purpose: This data is used to display your fitness statistics, track progress, analyze training patterns, and help you plan future workouts.

Location Data

The App may request location access to provide local weather forecasts and running conditions, and to display weather information on share cards.

Purpose: Location is used solely to fetch weather data for your area. Your location is not tracked, stored, or transmitted to any server.

Photos

The App requests permission to save images to your photo library when you create and export share cards, allowing you to save workout summary images to share on social media or with friends.

Data Storage

All your fitness data is stored locally on your device. Training Stack does not have servers and does not transmit your personal data to any external service.

Data Sharing

We do not share your data with anyone.

The only way your data leaves the App is when you explicitly choose to share a workout card image via the iOS share sheet.

Third-Party Services

Training Stack uses the following Apple services:

These services are provided by Apple and are subject to Apple's privacy policy.

Children's Privacy

Training Stack does not knowingly collect data from children under 13. The App does not require any personal information to function.

Data Retention

Since all data is stored locally on your device:

Your Rights

You have full control over your data:

Changes to This Policy

We may update this privacy policy from time to time. Any changes will be reflected in the "Last Updated" date above. Continued use of the App after changes constitutes acceptance of the updated policy.

Contact Us

If you have questions about this privacy policy or the App's data practices, please contact:

Effective as of January 15, 2026