Last updated: January 14, 2026
Koyo (“we,” “us,” or “our”) respects your privacy. This Privacy Policy explains how we collect, use, store, and protect your information when you use the Koyo mobile application and related services (the “Service”).
1. Information We Collect
Information You Provide
Account Information: When you create an account, we collect information provided through third-party authentication providers (such as Apple or Google), including your email address and name (if available).
Journal Content: The text you write in your journal entries.
Preferences & Inputs: Information you provide during onboarding or while interacting with Koyo.
Automatically Collected Information
Usage Data: App interactions, feature usage, timestamps, and similar usage information.
Device Data: Basic device and operating system information.
This information helps us operate, maintain, and improve the Service.
2. How We Use Your Information
We use your information to:
Provide core journaling and AI-powered features.
Generate reflections, follow-up questions, insights, and analysis.
Personalize your experience based on your preferences.
Monitor performance, diagnose issues, and improve reliability.
Communicate important updates related to the Service.
We do not sell your personal data.
3. AI Processing
Koyo uses third-party AI services (such as OpenAI) to process journal entries and generate responses, insights, and analysis.
Journal text is transmitted securely to these services solely to provide Koyo’s functionality.
AI responses are generated automatically and are not reviewed by humans.
We do not use your journal content to train our own AI models.
4. Analytics and Monitoring
We use analytics and monitoring tools (such as Sentry and Mixpanel) to understand app usage, detect errors, and improve performance.
These tools collect technical and usage data.
Sensitive journal content is not intentionally sent to analytics services.
5. Data Storage and Security
We use industry-standard security measures to protect your information, including:
Encryption of stored data using AES-256.
Secure transmission of data using HTTPS/TLS.
Access controls and safeguards designed to prevent unauthorized access.
While we take reasonable steps to protect your data, no system can be guaranteed to be completely secure.
6. Sharing of Information
We only share information as necessary to operate Koyo, including:
With trusted service providers who process data on our behalf (such as AI and analytics providers).
When required to comply with legal obligations or protect the rights and safety of Koyo and its users.
We do not sell personal data or share it for advertising purposes.
7. Data Retention and Deletion
We retain your information only as long as necessary to provide the Service.
You may delete your account at any time. When you do, your journal entries and account data will be deleted from our systems within a reasonable period, except where retention is required by law.
8. Your Rights
Depending on your location, you may have the right to:
Access your personal data.
Request correction or deletion of your data.
Withdraw consent where applicable.
You can exercise these rights by contacting us.
9. Children’s Privacy
Koyo is not intended for use by individuals under the age of 13 (or the minimum legal age in your jurisdiction). We do not knowingly collect personal information from children.
10. Changes to This Policy
We may update this Privacy Policy from time to time. If changes are significant, we will notify you through the app or other appropriate means.
11. Contact Us
If you have questions or concerns about this Privacy Policy, you can contact us at support@koyojournal.com