Privacy Policy

Effective Date: April 25, 2026

Hydra Fuel ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use the Hydra Fuel mobile application.

1. Overview

Hydra Fuel is a hydration and wellness tracking application designed to help users monitor water intake, creatine intake (optional), and personal progress such as goals, streaks, and activity levels.

We only collect data necessary to provide and improve the app experience.

2. Information We Collect

A. Account & Authentication Data

When you create or log into an account, we may collect:

Email address
Authentication provider (Apple, Google, or email login)
Unique user identifier

Notes:

When using Sign in with Apple, your email may be anonymized (private relay)
We only receive the data provided by the authentication provider
We do not access your passwords

B. Profile & Health-Related Data

To personalize your experience, we may collect:

Weight
Height
Gender
Date of birth
Activity level
Hydration goals
Climate/environment preferences
Creatine intake preferences (including zero intake)
Measurement units (ml/oz)

Important:

This data is used strictly for app functionality
It is not used for medical purposes
It is not shared or sold

C. Usage Data

We collect information related to how you use the app:

Water intake logs
Creatine intake logs (if enabled)
Daily activity tracking
Streak data
Badge progression
Historical progress (daily, weekly, monthly)

D. Technical Data

We may automatically collect limited technical data:

Device type
Operating system
App version
Crash reports and performance data

E. Purchases & Subscription Data

All payments are processed by Apple (App Store)
We do NOT collect or store payment details

We use RevenueCat to manage subscriptions and receive:

Subscription status
Expiration date
Entitlement status (e.g., "pro_access")

3. Legal Basis for Processing (GDPR)

We process your data based on:

Your consent (when you use the app)
Contractual necessity (to provide app features)
Legitimate interest (to improve performance and stability)

4. How We Use Your Information

We use collected data to:

Provide core app functionality
Calculate personalized hydration goals
Track progress, streaks, and analytics
Improve app performance and stability
Detect and fix bugs
Manage subscriptions and premium features

5. Data Sharing

We do NOT sell, rent, or trade your personal data.

We only share limited data with trusted third-party services:

Apple (authentication, payments)
Google (authentication, if used)
RevenueCat (subscription management)

Each third-party service operates under its own privacy policy.

6. Data Storage & Security

We implement appropriate technical and organizational measures to protect your data, including:

Secure storage systems
Restricted access controls
Protection against unauthorized access

However, no system is completely secure.

7. Data Retention

We retain your data only as long as necessary to provide the service.

When you delete your account:

All personal data is permanently deleted
All usage data (logs, progress, streaks) is removed
This action is irreversible

8. Your Rights

Depending on your location, you have the right to:

Access your data
Correct your data
Delete your data
Withdraw consent

You can manage most of this directly in the app.

For additional requests:
📧 hydrafuelapp.help@outlook.com

9. Account Deletion

Users can delete their account at any time within the app.

Upon deletion:

All personal data is erased
Subscription data remains managed by Apple
Deletion cannot be undone

10. Children's Privacy

Hydra Fuel is not intended for children under 13.

We do not knowingly collect personal data from children.

11. Changes to This Policy

We may update this Privacy Policy from time to time.

Changes will be reflected by updating the "Effective Date".

Continued use of the app means you accept the updated policy.

12. Contact

If you have any questions:

📧 Email: hydrafuelapp.help@outlook.com

🌐 Website: https://hydrafuel.app/

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