プライバシーポリシー

1. 収集する情報

当社は、教育サービスを提供するために必要な情報を収集します。

Account & Profile Information

• Full name (first and last)
• Email address
• Parent or guardian email address (for users under 13)
• Display name / nickname
• Date of birth
• Grade level
• School name
• Bio, pronouns, and interests
• Avatar configuration and profile image

Learning & Progress Data

• Course enrollment and lesson completion status
• Quiz and assessment scores
• Experience points (XP) and rank
• Badges, certificates, and achievements earned
• Login streak and activity timestamps

User-Created Content

• AI-generated images, music, and videos
• Text prompts submitted to AI tools
• Posts, comments, and messages
• Notes and project files

Technical & Usage Data

• IP address
• Device type and operating system
• Browser type and version
• Session timestamps and duration
• Pages visited and features used
• Language and timezone preferences

2. 情報の利用方法

• 教育体験を提供し、パーソナライズする
• 学習の進捗状況を追跡し、達成状況を評価する
• お子さんの活動について、保護者の方と連絡を取り合います
• プラットフォームを改善し、新しい機能を開発します
• 安全を確保し、不正利用を防ぎます

3. お子様のプライバシー（COPPA）

Dream Engine is designed for children and teens ages 8–16. Our privacy program is designed to support the Children's Online Privacy Protection Act (COPPA), and we are working toward independently validated compliance through measures intended to protect children's data:

• Verifiable Parental Consent: For users under the age of 13, we require verifiable parental consent before collecting any personal data. No account for a child under 13 is activated until consent is obtained.
• No Sale or Sharing of Minors' Data: Dream Engine Kids LLC does not sell, rent, trade, or otherwise share personal data collected from minors (users under 18) with any third parties for marketing, advertising, or commercial purposes.
• No Behavioral Advertising: We do not serve behavioral or targeted advertising to any user, including children.
• Measurement on Public Pages: On our public pages for parents and schools we use Google Analytics to see how the site is used, and Google Ads conversion measurement to see which of our ads bring visits, sign-ups and purchases. Both run with ad personalization and Google signals turned off, and no remarketing lists are built. They load only for signed-out visitors and school staff, and once when a payment is confirmed, to count the purchase. They never load for students, in child mode, inside the signed-in app, or on the pages students use to join (Join, Gateway, Chess, Junior Guide). The identifiers they use serve only this measurement, which supports our internal operations; they are not used to contact anyone, build profiles or target ads. Declining in the cookie banner, the opt-outs in Settings and Global Privacy Control turn them off.
• Data Minimization: We collect only the minimum personal information necessary to provide the educational service.
• Parental Access & Control: Parents and guardians can review, modify, or delete their child's personal information at any time through the Parent Dashboard or by contacting us at parents@dreamengine.ai.
• Right to Revoke Consent: Parents may revoke consent at any time, which will result in the deactivation and deletion of the child's account.

For full details, see our COPPA Compliance page and Parental Consent Form.

4. データ共有

個人情報を販売することはありません。以下のような相手とデータを共有する場合があります。

• プラットフォームの運営を支援するサービスプロバイダー（厳格なデータ保護契約の下で）
• 法的に義務付けられている場合の法執行機関
• 研究目的で集計され、匿名化された形式

5. あなたの権利

あなたには以下の権利があります。

• 個人データへのアクセス
• 不正確な情報の修正
• アカウントと関連データの削除
• データをポータブル形式でエクスポート
• 特定のデータ処理のオプトアウト

To exercise your right to data export, deletion, or privacy controls, visit Settings → Compliance in your dashboard. Account deletion is immediate and permanent.

6. データセキュリティ

当社では、個人情報を保護するため、以下の技術的および組織的な安全管理措置を講じています。

• 通信時の暗号化： お客様のデバイスと当社のサーバー間で送信されるすべてのデータは、TLS 1.2以上（HTTPS）を使用して暗号化されます。暗号化されていない接続は一切受け付けません。
• 保管時の暗号化： データベースの記録、アップロードされたファイル、バックアップを含むすべての保存データは、AES-256暗号化方式を用いて保管時に暗号化されます。
• データベースのセキュリティ： 行レベルセキュリティ（RLS）ポリシーにより、ユーザーによるアクセスは自身のデータのみに制限されています。管理者権限でのアクセスには、追加の認証が必要です。
• 認証： トークンベースのセキュアな認証とセッションの自動失効を採用しています。パスワードがプレーンテキストで保存されることはありません。
• アクセス制御： プラットフォーム全体でロールベースのアクセス制御（RBAC）を徹底しています。すべてのシステムコンポーネントおよびスタッフに対し、最小権限の原則を適用しています。
• ファイルストレージ： アップロードされたすべてのファイルは、AES-256暗号化を施したセキュアなクラウドストレージに保存されます。アクセスは、有効期限付きの署名付きURLによって制御されています。
• 決済データ： クレジットカードおよび決済情報は、PCI DSSレベル1認定プロセッサーであるStripeによってのみ処理されます。Dream Engineが決済カード情報の全項目を保存、処理、または閲覧することはありません。

ただし、インターネット上の送信方法や電子的な保存方法において、100%安全なものは存在しません。当社はお客様の個人情報を保護するために商業的に合理的な手段を講じるよう努めておりますが、絶対的なセキュリティを保証するものではありません。お客様は、個人情報の送信がご自身の責任において行われること、および不正アクセス、ハッキング、データの紛失、その他のセキュリティ侵害について当社が責任を負わないことを認め、同意するものとします。

7. Data Retention

We retain personal data only for as long as necessary to fulfill the purposes described in this Privacy Policy:

• Active accounts: Data is retained for the duration of your active account or, for school/organization accounts, the duration of the service contract.
• Contract termination: Upon termination of a school or organization contract, all associated student data will be permanently deleted or de-identified within ninety (90) days.
• Inactive accounts: Accounts with no login activity for twelve (12) consecutive months may be flagged for deletion. We will notify the account holder (or parent/guardian) via email at least thirty (30) days before deletion.
• On-demand deletion: Users, parents, and school administrators may request immediate deletion of their data at any time through the Settings → Compliance section of their dashboard.
• Backups: Backup copies of deleted data are purged within thirty (30) days of primary deletion.
• Legal exceptions: Data may be retained beyond these periods only where required by applicable law or regulation.

8. Third-Party Services

Our platform integrates with the following third-party service providers. The table below itemizes each provider, the specific data elements shared, and the purpose of the integration:

Dream Engine requires all third-party sub-processors to be contractually bound to privacy and security standards equal to or exceeding those outlined in this Privacy Policy. These contractual obligations include, but are not limited to:

• Data minimization — processing only the minimum data necessary for the stated purpose
• Breach notification — notifying Dream Engine within seventy-two (72) hours of any confirmed data breach
• Data deletion — permanently deleting or returning all user data upon termination of the service agreement
• Confidentiality — maintaining strict confidentiality of all personal information processed on Dream Engine's behalf
• Compliance — adhering to all applicable data protection laws and regulations, including COPPA and FERPA where applicable

We encourage you to review the privacy policies of these third-party services. Dream Engine regularly reviews its sub-processors to ensure ongoing compliance with these standards.

8. お問い合わせ

You (or your school or organization, as applicable) retain full ownership of all personal data and content you provide to or create on the Dream Engine platform. Dream Engine does not claim ownership of your data.

By using the platform, you grant Dream Engine a limited, non-exclusive, revocable license to process, store, and transmit your data solely for the purpose of providing and improving the service. This license terminates when you delete your data or your account.

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or for other operational, legal, or regulatory reasons.

If we make material changes to this Privacy Policy, we will notify you via email to the address associated with your account and/or through a prominent in-app notification at least thirty (30) days before the changes take effect. Your continued use of the platform after the effective date of the revised policy constitutes your acceptance of the changes.

We encourage you to review this Privacy Policy periodically to stay informed about how we protect your information.

11. Contact Us

For privacy inquiries or to exercise your rights, contact us at: privacy@dreamengine.ai