Privacy Policy
Sarox Mobile App - Fitness & Powerlifting Training
Last updated: 7/2/2026
1. Introduction
Sarox develops the mobile application "Sarox" which helps athletes and coaches manage their powerlifting and strength training programs. This privacy policy explains how we collect, use, and protect your personal data when you use our mobile application.
2. Data Collection
2.1 Workout and Training Data
The app collects workout data including exercises, sets, repetitions, weights, rest times, and performance metrics. This data is stored locally on your device only and is never transmitted to our servers.
2.2 Training Programs
Your training programs, including custom programs and prebuilt programs, are stored locally on your device. Program data includes exercise selection, volume, intensity, and progression schemes.
2.3 One Rep Max Calculations
The app calculates and stores your one rep max estimates for various exercises based on your workout history. This data remains on your device.
2.4 Photos and Videos
If you use the camera feature to record exercise form or save workout videos, these files are stored locally on your device or saved to your photo library with your permission. We do not have access to these files.
2.5 User Settings and Preferences
The app stores your preferences including language settings, sound preferences, measurement units, and other customization options locally on your device.
2.6 Analytics and Error Data
We collect anonymized usage data and crash reports through Sentry and analytics platforms to improve app performance and user experience. This includes device information, app version, and anonymized usage patterns.
3. Device Permissions
The app requests the following permissions to provide its functionality:
Camera: Used for recording exercise form and capturing workout videos. You can deny this permission and still use all other app features.
Microphone: Required when recording videos with sound. Only accessed when you actively use the video recording feature.
Photo Library (Read): Allows you to select existing photos from your library to associate with exercises or workouts.
Media Library (Write): Enables saving workout videos and photos to your device's photo library when you choose to save them.
Audio Background Mode: Allows the app to play timer sounds and rest notifications even when the app is in the background.
Location: The app does NOT collect or use location data. Some third-party libraries reference location APIs, but no location data is accessed or stored.
4. Data Storage
All your workout data, programs, and settings are stored exclusively on your device using secure local storage mechanisms:
Local Storage Only: No workout data, programs, or personal information is transmitted to or stored on our servers.
No Cloud Sync: The app does not currently offer cloud synchronization or backup features.
Data Deletion: All app data is permanently deleted when you uninstall the application from your device.
Device Security: Your data benefits from your device's built-in security features, including encryption and biometric locks.
5. Analytics and Error Tracking
5.1 Sentry Error Tracking
We use Sentry for crash reporting and error monitoring. When the app encounters an error, Sentry collects technical information including device type, operating system version, app version, and error details. This helps us identify and fix bugs quickly. No personal workout data is included in error reports.
5.2 Usage Analytics
We collect anonymized usage analytics to understand how users interact with the app. This includes features used, screen views, and general usage patterns. All analytics data is anonymized and cannot be linked back to individual users or their specific workout data.
6. Third-Party Services
The app integrates the following third-party services:
Sentry: Error tracking and performance monitoring. Collects anonymized technical data when errors occur.
Expo Services: Used for app updates and over-the-air updates. Collects minimal technical data about app version and device type.
Analytics Platforms: We use analytics services to track app usage patterns in an anonymized manner to improve user experience.
These services operate under their own privacy policies and we ensure they handle data in compliance with privacy regulations.
7. Data Security
We take data security seriously and implement multiple layers of protection:
Local Encryption: Your data is stored using secure storage mechanisms provided by iOS and Android.
HTTPS Communication: All communication with our services and third-party services uses encrypted HTTPS connections.
No Server Storage: Since workout data never leaves your device, there's no risk of server breaches or unauthorized access to your training data.
Regular Security Updates: We regularly update the app to address security vulnerabilities and follow best practices.
8. Your Rights
Under GDPR and other privacy regulations, you have the following rights:
Right to Access: You can access all your data directly within the app, including workout history, programs, and settings.
Right to Deletion: You can delete your data at any time by clearing app data in the settings or uninstalling the application.
Right to Portability: Your data remains on your device and is accessible to you at all times.
Right to Object: You can opt out of analytics tracking through your device settings or by contacting us.
Right to Rectification: You can modify your data at any time directly within the app.
9. Children's Privacy
The Sarox app is designed for users who are at least 13 years old. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us so we can delete such information.
10. Changes to This Privacy Policy
We may update this privacy policy from time to time to reflect changes in our practices or for legal, operational, or regulatory reasons. Significant changes will be communicated through the app or via app store update notes. We encourage you to review this policy periodically. The "Last updated" date at the top of this page indicates when the policy was last revised.
11. Contact Us
If you have any questions about this privacy policy, your data, or how we handle your information, please contact us:
Sarox
Email: contact@sarox.fr
Website: https://sarox.fr
12. GDPR Compliance
This application is designed in compliance with the General Data Protection Regulation (GDPR). We apply the principles of data minimization, transparency, and privacy by design. By storing all personal data locally on your device, we minimize data collection and ensure you maintain full control over your information.
Privacy Highlights
✓ All workout data stored locally on your device only
✓ No cloud storage or server synchronization of personal data
✓ Location data is never collected or accessed
✓ Only anonymized analytics for app improvement
✓ Encrypted HTTPS communications with all services
✓ Full user control - delete data anytime
✓ Minimal permissions requested - only what's necessary
✓ GDPR compliant by design