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Privacy Policy

Last updated: December 2, 2025

At Kest, we take your privacy seriously. This Privacy Policy explains how we collect, use, disclose, and protect your information when you use our AI-powered flight search service.

1. Information We Collect

Information You Provide

• Account Information: If you create an account, we collect your email address and any profile information you choose to provide.
• Search Queries: The flight searches you make, including destinations, travel dates, passenger counts, and preferences.
• Communications: Messages you send to our AI assistant and any feedback or support requests.

Information Collected Automatically

• Usage Data: How you interact with our Services, including pages visited, features used, search history, and time spent on the platform.
• Device Information: Browser type, operating system, device identifiers, and screen resolution.
• Log Data: IP address, access times, referring URLs, and other standard log information.
• Cookies and Similar Technologies: We use cookies and similar tracking technologies to enhance your experience and analyze usage patterns.

2. How We Use Your Information

We use your information to:

• Provide Our Services: Process your flight searches, deliver personalized recommendations, and enable bookings.
• Improve Our Services: Analyze usage patterns, troubleshoot issues, and develop new features.
• Personalize Your Experience: Remember your preferences, search history, and provide relevant suggestions.
• Communicate With You: Send service-related notifications, respond to inquiries, and provide customer support.
• Ensure Security: Detect and prevent fraud, abuse, and other harmful activities.
• Comply With Legal Obligations: Meet regulatory requirements and respond to legal requests.

3. How We Share Your Information

We do not sell your personal information. We may share your information in the following circumstances:

Recipient	Purpose
Flight Providers	To search for flights and facilitate bookings on your behalf
Service Providers	Third parties who help us operate our Services (hosting, analytics, customer support)
AI Service Providers	To process your queries and provide AI-powered recommendations
Legal Authorities	When required by law or to protect our rights and safety
Business Transfers	In connection with a merger, acquisition, or sale of assets

4. AI and Your Data

How AI Processes Your Data. When you use Kest, your search queries are processed by AI systems to understand your travel needs and provide relevant flight recommendations. This processing happens in real-time to deliver immediate results.

Training and Improvement. We may use aggregated, anonymized data to improve our AI models and Services. We do not use your personal conversations to train AI models in a way that would identify you.

Third-Party AI Services. We use third-party AI providers to power certain features. These providers process data according to their own privacy policies and our data processing agreements with them.

5. Data Retention

We retain your information for as long as necessary to provide our Services and fulfill the purposes described in this Policy. Specifically:

• Account Data: Retained while your account is active and for a reasonable period thereafter.
• Search History: Retained to improve your experience and provide personalized recommendations.
• Log Data: Generally retained for up to 12 months for security and analytics purposes.

You can request deletion of your data at any time by contacting us.

6. Your Rights and Choices

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

• Access: Request a copy of the personal information we hold about you.
• Correction: Request correction of inaccurate or incomplete information.
• Deletion: Request deletion of your personal information.
• Portability: Request a portable copy of your data.
• Opt-Out: Opt out of certain data processing activities, including marketing communications.
• Withdraw Consent: Where processing is based on consent, withdraw your consent at any time.

To exercise these rights, contact us at privacy@kest.ai.

7. Cookies and Tracking

We use cookies and similar technologies to:

• Keep you logged in and remember your preferences
• Understand how you use our Services
• Analyze and improve performance

You can control cookies through your browser settings. Note that disabling cookies may affect the functionality of our Services.

8. Data Security

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

• Encryption of data in transit and at rest
• Access controls and authentication
• Regular security assessments
• Employee training on data protection

However, no method of transmission over the internet is completely secure. We cannot guarantee absolute security of your data.

9. International Data Transfers

Your information may be transferred to and processed in countries other than your own. We ensure appropriate safeguards are in place for such transfers, including standard contractual clauses and other legally approved mechanisms.

10. Children's Privacy

Our Services are not intended for children under 18. We do not knowingly collect personal information from children. If you believe we have collected information from a child, please contact us immediately.

11. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of material changes by posting the updated Policy on our website with a new "Last updated" date. We encourage you to review this Policy periodically.

12. Contact Us

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

Email: privacy@kest.ai

13. Additional Information for Specific Regions

For California Residents (CCPA)

California residents have additional rights under the California Consumer Privacy Act, including the right to know what personal information we collect, the right to delete personal information, and the right to opt out of the sale of personal information. We do not sell personal information.

For European Users (GDPR)

If you are in the European Economic Area, you have rights under the General Data Protection Regulation, including the rights described in Section 6. Our legal basis for processing your information includes: performance of our contract with you, our legitimate interests, your consent, and compliance with legal obligations.