Privacy Policy for FuelSync

Last Updated: December 22, 2025

Introduction

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

Information We Collect

Health Data (via Apple HealthKit)

FuelSync integrates with Apple HealthKit to provide personalized health insights. With your explicit permission, we access:

Data We Read:

  • Sleep analysis and duration
  • Heart rate variability (HRV)
  • Resting heart rate
  • Step count
  • Active energy burned
  • Body weight/mass

Data We Write:

  • Dietary energy (calories)
  • Protein intake
  • Carbohydrate intake
  • Total fat intake

Meal and Nutrition Data

  • Meals you log within the app
  • Consumption timestamps
  • Portion sizes

How We Use Your Information

We use your health and nutrition data solely to:

  1. Display your health metrics on your personal dashboard
  2. Generate insights about correlations between your nutrition and health metrics
  3. Track your meal history and nutrition intake
  4. Sync nutrition data to Apple Health (with your permission)

Data Storage and Security

Local Storage Only

All your data is stored locally on your device.

FuelSync does not:

  • Upload your data to external servers
  • Use cloud storage or synchronization services
  • Share your data with third parties
  • Collect analytics or tracking data
  • Use advertising or marketing services

Your health and meal data never leaves your device.

Data Protection

Your data is protected by:

  • iOS device encryption
  • Apple's HealthKit security framework
  • Local SwiftData storage with iOS sandboxing

Data Sharing

We do not share your personal data with anyone. Period.

  • No third-party analytics
  • No advertising networks
  • No data brokers
  • No social media integrations

Your Rights and Choices

Access and Control

You have complete control over your data:

  • Revoke HealthKit Access: Go to Settings > Health > Data Access & Devices > FuelSync to manage permissions
  • Delete App Data: Uninstalling the app removes all locally stored data
  • Export Health Data: Use Apple Health's built-in export feature

HealthKit Permissions

You can grant or revoke specific HealthKit permissions at any time through iOS Settings. The app will continue to function with limited features if you deny certain permissions.

Children's Privacy

FuelSync is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by updating the "Last Updated" date at the top of this policy.

Contact Us

If you have questions about this Privacy Policy or our privacy practices, please contact us at:

Email: nora@indiestudio.ai

Developer: Indie Studio

Apple HealthKit Disclosure

FuelSync uses Apple HealthKit to read and write health data. In accordance with Apple's requirements:

  • Health data is used only to provide the app's core functionality
  • Health data is not used for advertising
  • Health data is not shared with third parties
  • Health data is not sold

This app's use of HealthKit data complies with Apple's HealthKit guidelines.

Summary

What we collect:

Health metrics from HealthKit (with permission) and meals you log. All data stays on your device.

What third parties receive:

Nothing. We do not share any data with third parties.

Your control:

  • You control all HealthKit permissions
  • All data stored locally on your device
  • Delete anytime by removing the app

FuelSync — Privacy-first nutrition tracking.