Privacy Policy

Last updated: August 3, 2026

1. Introduction

Mystrix ("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 interactive storytelling platform.

2. Information We Collect

Information You Provide

  • Account Information: Email address, display name, password
  • Profile Information: Bio, preferences, settings
  • Payment Information: Processed securely through our payment providers (Stripe, and PayPal where offered)
  • Communication: Support requests and feedback
  • Content You Create: Story inputs and messages you write during sessions, world chat messages, creator drafts, and any images, audio, or video you upload

Information Collected Automatically

  • Usage Data: Pages visited, features used, session interactions
  • Device Information: Browser type, operating system, device identifiers
  • Log Data: IP address, access times, referring URLs

3. How We Use Your Information

We use your information to:

  • Provide and maintain the Service
  • Process transactions and manage your account
  • Personalize your experience and content recommendations
  • Improve our Service and develop new features
  • Communicate with you about updates and support
  • Ensure safety and security of the platform
  • Comply with legal obligations

4. AI Processing of Your Content

When you play a story, ask our support assistant, chat in a world, or use our creator tools:

  • The text you write is sent to a third-party AI provider that generates the response. This includes story inputs, support questions, world chat messages, and creator drafts. We currently use DeepSeek; our systems also support OpenAI, OpenRouter, and Groq, and the provider we use may change.
  • Session transcripts are stored to enable resuming sessions
  • Aggregate, anonymized data may be used to improve AI quality
  • We do not use your personal interactions to train AI models on other users' content
  • We do not control whether a third-party AI provider retains or trains on the text we send it. That is governed by that provider's own terms.
  • If you turn on voice narration, the story text to be spoken is sent to Microsoft's Edge text-to-speech service. Voice narration is off unless you enable it.
  • Images and video you upload are sent to OpenAI for automated safety classification before they are published.
  • Story artwork is generated on our own servers, and the prompts used to generate it are not sent to an external image provider.

5. Information Sharing

We do not sell your personal information. We may share information with:

  • Service Providers: Third parties that help us operate. These are our payment processors (Stripe, and PayPal where offered), the AI providers described in section 4, Microsoft for voice narration, OpenAI for upload safety classification, and Google for push notifications to our mobile apps. We do not share your information with a third-party analytics provider; see section 9.
  • Creators: Aggregate, anonymized statistics about story performance
  • Legal Requirements: When required by law or to protect our rights
  • Business Transfers: In connection with a merger, acquisition, or sale of assets

6. Data Security

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

  • Encryption of data in transit
  • Secure authentication systems
  • Regular security assessments
  • Access controls and monitoring

7. Data Retention

We retain your information for as long as your account is active or as needed to provide services. You may request deletion of your account and associated data at any time.

8. Your Rights

Depending on your location, you may have rights including:

  • Access to your personal information
  • Correction of inaccurate data
  • Deletion of your data
  • Data portability
  • Objection to processing
  • Withdrawal of consent

To exercise these rights, please contact us through our support system.

9. Cookies and Tracking

We use cookies and similar technologies to:

  • Maintain your session and authentication
  • Remember your preferences
  • Analyze usage patterns
  • Improve our Service

You can control cookies through your browser settings.

Our visitor analytics are self-hosted on our own servers. We do not use Google Analytics or any third-party analytics provider, and we do not sell or share visitor data. Analytics do not set a cookie: visitors are counted using a rotating one-way fingerprint that we cannot reverse to an IP address, and which stops being linkable to anyone within 24 hours. We honour the Do Not Track and Global Privacy Control browser signals — if your browser sends either, we record nothing at all.

10. Children's Privacy

Mystrix is not intended for children under 13. We do not knowingly collect information from children under 13. If we learn we have collected such information, we will delete it promptly.

11. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new policy on the Service and updating the "Last updated" date.

12. Contact Us

If you have questions about this Privacy Policy or our data practices, please contact us through our support system.