Hottoly Privacy Policy

Last updated: February 28, 2026

Satoshi Yokokawa (MysteryLog) ("we", "our", or "us") explains in this Privacy Policy how we handle personal data and related information when you use Hottoly (the "Service").

1. Information We Collect

Depending on your use of the Service, we may collect:

• Account information (UID, email address, sign-in provider data)
• Profile information (display name, avatar image, language settings)
• Activity and content data (mood posts, comments, reactions, stories, notification settings)
• Technical data (device info, OS, app version, push token, logs, crash reports)
• Subscription data (entitlement status, expiration date; we do not store full payment card data)
• Support data (email address and support messages)

2. Purposes of Use

• Provide, maintain, and improve the Service
• Authentication, account management, and security
• Notifications, reminders, and customer support
• Fraud prevention and Terms enforcement
• Usage analytics, incident investigation, and quality improvement
• Compliance with legal obligations

3. Third-Party Services

We use the following third-party services:

• Google Firebase (Authentication, Firestore, Storage, Cloud Functions, Messaging, Analytics, Crashlytics, Remote Config)
• RevenueCat (subscription management)
• AppsFlyer (attribution and deep links)
• Google AdMob (ad delivery)

Please also review each provider's privacy policy for details on their own data processing.

4. Disclosure to Third Parties

We do not disclose personal data to third parties except when:

• you consent;
• required by applicable law;
• necessary to protect life, body, or property and obtaining consent is difficult; or
• necessary for outsourcing within the scope required for service operations.

5. Security Measures

We implement reasonable security controls such as access control, authentication management, and encrypted communications to protect your information from unauthorized access, loss, leakage, or tampering.

6. Data Retention

We retain data for as long as needed to fulfill the purposes described in this Policy or as required by law. If you delete your account, we will delete or anonymize your data within a reasonable period, except where retention is legally required.

7. International Data Transfers

We may process data on cloud infrastructure located outside your country of residence. By using the Service, you acknowledge that your data may be transferred and processed internationally.

8. Children's Privacy

The Service is not primarily directed to children under 13. If we learn that personal data of a child under 13 has been collected without appropriate consent, we will take reasonable steps to delete it.

9. Your Rights

Subject to applicable law, you may request access, correction, deletion, suspension of use, or other rights regarding your personal data. Please contact us using the information below.

10. Changes to This Policy

We may update this Privacy Policy due to legal, technical, or business changes. Material updates will be notified in the Service or on our website as appropriate.

11. Contact

• Operator: Satoshi Yokokawa (MysteryLog)
• Email: support@mysterylog.com
• Website: https://hottoly.com