Privacy Policy for TennisCue

Introduction

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

Please read this Privacy Policy carefully. By using the App, you agree to the collection and use of information in accordance with this policy.

Information We Collect

1. Personal Information You Provide

When you create an account, we collect:

• Email address - Used for account creation and login
• Password - Encrypted and stored securely
• Skill level information - Collected through the skill assessment quiz

2. Practice Data

When you use the App, we collect:

• Active cues - Which technique cues you're focusing on
• Practice session logs - Dates and times of practice sessions
• Cue ratings - Your self-assessed ratings (1-5 stars) for each cue
• Session notes - Any text notes you add to sessions (if applicable)

3. Automatically Collected Information

We automatically collect certain information when you use the App:

• Device information - Device type, operating system version
• Usage data - App features used, screens visited, time spent
• Crash reports - Technical information about app crashes (if they occur)
• Log data - IP address, access times, app version

4. Information We Do NOT Collect

We do not collect:

• Real name or personal identity (unless you include it in your email)
• Phone number
• Physical address
• Payment information (the app is currently free)
• Location data
• Photos or videos from your device
• Contacts from your device
• Camera or microphone data (permissions are declared but not currently used)

How We Use Your Information

1. Provide and Maintain the App

• Create and manage your account
• Sync your data across devices
• Enable offline functionality
• Store your practice history and progress

2. Improve the App

• Analyze usage patterns to improve features
• Identify and fix bugs and technical issues
• Understand which features are most valuable
• Develop new features based on user behavior

3. Communicate With You

• Send important service announcements
• Respond to your support requests
• Notify you of updates (if you opt-in)
• Request feedback on the App

4. Ensure Security

• Detect and prevent fraud or abuse
• Protect against security threats
• Maintain the integrity of our services

How We Share Your Information

Third-Party Services We Use

Supabase (Backend Infrastructure)

• Purpose: Database hosting, authentication, cloud sync
• Data Shared: Email, encrypted password, practice data
• Privacy Policy: https://supabase.com/privacy
• Data Location: United States

Expo (Development Platform)

• Purpose: App distribution and updates
• Data Shared: Device type, OS version, crash reports
• Privacy Policy: https://expo.dev/privacy

When We May Disclose Information

We may disclose your information only in these limited circumstances:

1. Legal Compliance - If required by law, regulation, or legal process
2. Safety & Security - To protect rights, property, or safety of TennisCue, users, or the public
3. Business Transfer - In connection with a merger, acquisition, or sale of assets (users would be notified)
4. With Your Consent - When you explicitly authorize us to share information

Data Storage and Security

Where Your Data is Stored

Your data is stored on secure cloud servers provided by Supabase, located in the United States.

Security Measures

We implement appropriate technical and organizational measures to protect your information:

• Encryption in Transit - All data transmitted between your device and our servers is encrypted using TLS/SSL
• Encryption at Rest - Passwords are encrypted using industry-standard hashing algorithms
• Row-Level Security - Database access is restricted so users can only access their own data
• Secure Authentication - We use Supabase Auth for secure login and session management
• Regular Updates - We keep our security practices up-to-date

Important Note: While we strive to protect your information, no method of transmission over the internet or electronic storage is 100% secure. We cannot guarantee absolute security.

Data Retention

How Long We Keep Your Data

• Active Accounts - We retain your data as long as your account is active
• Inactive Accounts - If you don't use the app for 2 years, we may delete your account and data (you'll receive notice first)
• After Account Deletion - Most data is deleted immediately; some backup data may persist for up to 90 days

Your Privacy Rights

Depending on your location, you may have the following rights:

Right	Description
Access Your Data	Request a copy of the personal information we hold about you
Correct Your Data	Update or correct inaccurate information in your account settings
Delete Your Data	Request deletion of your account and all associated data
Export Your Data	Request a machine-readable copy of your practice data
Object to Processing	Object to our processing of your personal information
Withdraw Consent	Withdraw consent for data processing (may limit app functionality)

To exercise any of these rights, contact us at: [your-email@example.com] with subject line "Privacy Request - [Your Request Type]"

We will respond to your request within 30 days.

Children's Privacy

TennisCue is not intended for children under 13 years of age. 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, and we will delete such information.

International Users

TennisCue is operated from the United States. If you are accessing the App from outside the United States, your information may be transferred to, stored, and processed in the United States.

By using the App, you consent to the transfer of your information to countries that may have different data protection laws than your country of residence.

California Privacy Rights (CCPA)

If you are a California resident, you have additional rights:

• Right to Know - Request information about categories and specific pieces of personal information we've collected
• Right to Delete - Request deletion of your personal information (with certain exceptions)
• Right to Opt-Out - We do not sell personal information, so there is nothing to opt-out of
• Non-Discrimination - We will not discriminate against you for exercising your privacy rights

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. When we make changes:

1. We will update the "Last Updated" date at the top of this policy
2. We will notify you through the App if changes are material
3. We will post the new policy at this URL

Your continued use of the App after changes constitutes acceptance of the updated policy.

Contact Us

If you have questions or concerns about this Privacy Policy, please contact us:

Email: [your-email@example.com]
Subject Line: "Privacy Policy Question"
Response Time: We aim to respond within 48 hours

Summary (TL;DR)