Privacy Policy

Overview

Diagonal ("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 and related services.

Information We Collect

App Usage Information

• Device type, operating system, and app version
• Features used and time spent in the app
• Crash reports and performance analytics
• User preferences and settings

Account Information

For all registered users:

• Email address (for account creation, authentication, subscription management, and trial code validation)
• Account credentials and authentication tokens
• Subscription status and purchase history (Pro subscribers)
• Cloud sync preferences (Pro subscribers)

How We Use Your Information

Core App Functionality

• Provide real-time OBD-II diagnostics and monitoring
• Guide you through optimal drive cycle completion
• Generate personalized vehicle health reports
• Enable AI-powered diagnostic explanations

Service Improvement

• Analyze usage patterns to enhance app features
• Improve diagnostic accuracy and recommendations
• Develop new features based on user needs
• Fix bugs and optimize app performance

Customer Support

• Respond to your questions and support requests
• Troubleshoot technical issues
• Provide personalized assistance

Legal and Safety

• Comply with applicable laws and regulations
• Protect against fraud and abuse
• Maintain app security and user safety

Data Storage and Security

Local Storage

Most of your diagnostic data is stored locally on your device, giving you full control over your vehicle information.

Cloud Storage (Pro Users)

Diagonal Pro subscribers can sync data across devices. Cloud data is:

• Encrypted in transit and at rest
• Stored on secure, GDPR-compliant servers
• Accessible only to you and authorized support staff
• Regularly backed up with redundancy

Security Measures

• End-to-end encryption for sensitive data
• Regular security audits and updates
• Limited access controls for our team
• Secure deletion of data upon account closure

Data Sharing and Third Parties

Limited Sharing for Service Provision

We may share anonymized, aggregated data with:

• Cloud Infrastructure Providers: For secure data hosting and backup
• Analytics Services: For app performance and crash reporting (anonymized)
• Payment Processors: For subscription management (Apple App Store)

Legal Requirements

We may disclose information if required by law, court order, or to protect our rights and users' safety.

Business Transfers

In the event of a merger or acquisition, user data may be transferred, but the same privacy protections will apply.

Your Rights and Controls

Access and Control

• View and export your diagnostic history
• Delete specific vehicle records
• Modify app preferences and privacy settings
• Control location sharing permissions

Data Portability

You can export your diagnostic data in standard formats for use with other tools or for your records.

Account Deletion

You can delete your account at any time through the app settings. This will:

• Permanently delete your cloud-stored data
• Cancel your subscription (if applicable)
• Remove your email from our systems
• Retain anonymized usage data for service improvement

Children's Privacy

Diagonal is not intended for use by children under 13 years of age. We do not knowingly collect personal information from children under 13. If we become aware that we have collected such information, we will take steps to delete it promptly.

International Users

Diagonal is designed primarily for users in regions with OBD-II emission standards. If you use our service from outside these regions, your data may be transferred to and processed in countries with different privacy laws. We maintain the same privacy protections regardless of location.

Changes to This Policy

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

• We'll post the updated policy with a new "Last updated" date
• We'll notify users of significant changes through the app
• Continued use of the app constitutes acceptance of changes
• You can always view the current policy at diagonal-app.com/privacy

Contact Us

If you have questions about this Privacy Policy or how we handle your data, please contact us:

• Email: privacy@diagonal-app.com
• Support: support@drivecycle.app
• Response Time: We typically respond within 48 hours