Last Updated: January 22, 2026
Apex Run (operated by Slow Bloom Studio, “we,” “our,” or “us”) is committed to protecting your privacy. This Privacy Policy explains how your personal information is collected, used, and disclosed by our mobile application and web tools located at apexrun.fit.
By accessing or using our App or Web Tools (the “Service”), you signify that you have read, understood, and agree to our collection, storage, use, and disclosure of your personal information as described in this Privacy Policy.
1. Data Collection and Local-First Architecture#
Local-First Mobile Architecture#
Apex Run is built with a Local-First privacy architecture. By default, your health metrics, workout history, running logs, heart rate zones, and gear usage are stored locally on your iOS device using Apple’s SwiftData and HealthKit frameworks. We do not automatically upload your workout data to any external server.
HealthKit Data Protection#
To provide detailed running analytics, Apex Run requests permission to read and write data from Apple’s HealthKit database (e.g., Heart Rate, Active Energy, Distance, Workouts, GPS Location routes).
- Usage: We use HealthKit data solely to calculate metrics (such as pace trends, heart rate zones, training load, efficiency factor) and visualize your progress on your device.
- Privacy: We do not use HealthKit data for advertising or marketing purposes, and we never sell your health data to any third parties.
Web Tools Local Processing#
Our web tools (including the Running File Converter, GPX & FIT Track Comparator, and GPS Drift Analyzer) operate 100% locally inside your web browser.
- When you drag and drop
.FIT,.GPX, or.TCXfiles into our web tools, all parsing, Haversine coordinate math, and Leaflet map rendering occur entirely on your local machine. - Zero Uploads: No workout files, GPS coordinates, or location tracks are ever uploaded or transmitted to any cloud server.
Payment Information#
We do not collect or store your payment details. All in-app purchases or subscriptions are processed securely through Apple’s App Store payment systems.
2. How We Use Your Information#
We use on-device information to:
- Calculate personal running statistics, heart rate zones, and training trends.
- Render interactive track maps and performance charts inside the App and Web Tools.
- Respond to your support inquiries and feedback when you contact us.
3. Third-Party Services & Diagnostics#
We may use standard third-party diagnostic services for app stability monitoring (e.g., crash reporting tools). These tools collect only anonymous, aggregated technical diagnostics that cannot be used to personally identify you or extract workout locations.
4. Data Security#
We take reasonable technical measures to help protect information about you from loss, theft, misuse, and unauthorized access. Because your data is stored locally on your device, we recommend keeping your iOS operating system updated and backing up your device via iCloud or Finder.
5. Changes to This Policy#
We may update this Privacy Policy from time to time. If changes are made, we will update the “Last Updated” date at the top of this policy and revise the policy on our website.
6. Contact Us#
If you have any questions or feedback regarding this Privacy Policy, please contact us at: slowbloomyogi@gmail.com