次元空間DIMENSION SPACE
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⚠️ The Traditional Chinese (zh-HK) version is the legally authoritative version. This English version is provided for convenience; in case of any conflict, the Traditional Chinese version prevails.

Privacy Policy

Version: v1.1
Effective Date: May 8, 2026

Executive Summary

We are Dimension Space, an AI learning companion designed for students in Hong Kong. Our core privacy principles are as follows:

  1. Data Storage: Primary data is currently stored on servers in Hong Kong.
  2. AI Training: Our current policy is not to actively use user learning data to train AI models unless otherwise notified.
  3. Third-Party Sharing: We do not sell personal data to advertisers or unrelated third parties.

1. Scope of Data Collection

We only collect data necessary to provide our services:

  • Account Information: Apple ID identifier, nickname, and grade level.
  • Learning Content: Photo captures of problems, text queries, AI conversation logs, and learning progress.
  • Technical Data: Device model, iOS version, and crash reports.

We do not collect: Real names, detailed addresses, ID card numbers, or phone numbers.

2. Use of Data

  • To provide core learning features and AI-generated answers.
  • Product optimization and troubleshooting.
  • Sending parental weekly reports (if enabled).
  • Legal and compliance requirements.

3. Storage and Cross-Border Transfers

We currently utilize cloud services located in Hong Kong (e.g., Alibaba Cloud Hong Kong nodes) to store most data. Certain essential services (e.g., Apple Push Notifications, payments) involve cross-border data exchange with Apple Inc.

For details, please refer to the Data Storage & Cross-Border Transfer Notice.

4. AI Processing Statement

We use commercial-grade AI model APIs. Our contracts with providers require that they do not use the data we transmit to train their foundational models. We currently have no plans to utilize user personal conversations to train our own models. If this policy changes in the future, we will notify you in advance.

5. Data Retention Period

  • Account information and learning progress are retained until account deletion.
  • AI conversations and photos can be set to auto-clear after a specific period (e.g., 3, 6, or 12 months) in Settings.
  • Upon account deletion, data is permanently removed after a 30-day buffer period.

6. User Rights (PDPO)

In accordance with the Personal Data (Privacy) Ordinance of Hong Kong, users have the right to:

  • Access: Export personal data.
  • Correction: Amend incorrect information.
  • Erasure: Delete the account at any time.

7. Special Protection for Minors

  • Parental consent is required for users under 13.
  • No behavioral advertising is shown to users under 18.
  • Mental health crisis detection is implemented to guide users to professional help when necessary.

8. Contact Us

For privacy-related matters, please email: support@starcloudedu.com

— The Dimension Space Team