Privacy Policy
隐私政策
This Privacy Policy describes how your personal information is collected, used, and shared when you use MeasurementSpace (the "App").
1. INFORMATION WE COLLECT
1.1 Information You Provide to Us
The App may collect information that you voluntarily provide to us when you contact us for support or feedback. This information may include:
- Your name and contact information (such as email address)
- Information about your use of the App
- Any other information you choose to provide
1.2 Information Collected Automatically
When you use the App, we may automatically collect certain information about your device and usage of the App, including:
1.2.1 Device Information
We collect information about the device you use to access the App, including:
- Device model and manufacturer
- Operating system version
- Unique device identifiers (such as IDFV)
- Network information (such as Wi-Fi status)
- Camera and sensor capabilities
1.2.2 Usage Information
We collect information about how you use the App, including:
- Features you use and how often you use them
- Measurement types and units you select
- Interactions with the App's interface
- Performance data, including app crashes and errors
1.2.3 Location Information
The App does not collect precise location information from your device. However, certain AR features may use your device's camera and sensors to detect your immediate environment for measurement purposes. This environmental data is processed locally on your device and not sent to our servers.
1.2.4 Measurement Data
All measurement data created using the App is stored locally on your device. You may choose to export this data or share it through third-party services at your discretion. We do not automatically collect or transmit your measurement data unless you explicitly choose to share it with us for support purposes.
2. HOW WE USE YOUR INFORMATION
We use the information we collect to:
- Provide, maintain, and improve the App
- Develop new features and functionality
- Understand how users interact with the App
- Diagnose and fix technical issues
- Respond to your support requests and feedback
- Ensure the security and integrity of the App
We do not use your information to serve targeted advertising or for any other purposes not explicitly stated in this Privacy Policy.
3. HOW WE SHARE YOUR INFORMATION
We do not share your personal information with third parties except in the following limited circumstances:
3.1 Service Providers
We may engage third-party service providers to perform certain functions on our behalf, such as analytics or customer support. These service providers will have access to your information only to the extent necessary to perform their functions and are obligated not to disclose or use it for any other purpose.
3.2 Legal Requirements
We may disclose your information if required to do so by law or in response to valid requests by public authorities (e.g., a court or government agency).
3.3 Protection of Rights
We may disclose your information to protect our rights, privacy, safety, or property, and that of our users, or as otherwise required by law.
3.4 With Your Consent
We may share your information with third parties with your explicit consent.
4. DATA RETENTION
We retain the information we collect for as long as necessary to fulfill the purposes outlined in this Privacy Policy, unless a longer retention period is required or permitted by law. When determining retention periods, we consider the following factors:
- The nature and sensitivity of the information
- The potential risk of harm from unauthorized use or disclosure
- The purposes for which we process the information
- Whether we can achieve those purposes through other means
- Applicable legal, regulatory, tax, accounting, or other requirements
If you request deletion of your information, we will delete it from our active databases, but may retain some information in archived or backup systems for legal, tax, or regulatory purposes, or to prevent fraud, resolve disputes, or enforce our agreements.
5. YOUR RIGHTS AND CHOICES
You have certain rights regarding your personal information, including the right to access, correct, or delete your information, and to object to or restrict certain processing of your information.
5.1 Access to Your Information
You may request access to the personal information we hold about you. To make such a request, please contact us at 3dceliang6377@163.com. We may need to verify your identity before fulfilling your request.
5.2 Correction of Inaccuracies
If you believe that the personal information we hold about you is inaccurate, you may request that we correct it. To make such a request, please contact us at 3dceliang6377@163.com.
5.3 Deletion of Your Information
You may request that we delete your personal information. To make such a request, please contact us at 3dceliang6377@163.com. Please note that we may retain certain information as required by law or for legitimate business purposes.
5.4 Withdrawing Consent
If you have given us consent to process your information, you may withdraw that consent at any time by contacting us at 3dceliang6377@163.com. Withdrawing consent will not affect the lawfulness of processing based on consent before its withdrawal.
5.5 Data Portability
You may request a copy of your personal information in a structured, machine-readable format. To make such a request, please contact us at 3dceliang6377@163.com.
5.6 Objecting to Processing
You may object to our processing of your personal information based on our legitimate interests. To make such a request, please contact us at 3dceliang6377@163.com. We will consider your request and respond to you in a reasonable timeframe.
6. SECURITY OF YOUR INFORMATION
We take reasonable measures to protect your personal information from unauthorized access, use, or disclosure. These measures include:
- Encryption of data in transit and at rest
- Access controls to limit who can access your information
- Regular security assessments and updates
- Training our personnel on data security practices
However, no method of transmission over the Internet or electronic storage is completely secure. We cannot guarantee the absolute security of your information, but we will take commercially reasonable steps to protect it.
7. CHILDREN'S PRIVACY
The App is not intended for use by children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected personal information from a child under 13 without parental consent, we will take steps to delete that information as soon as possible.
8. THIRD-PARTY SERVICES
The App may contain links to third-party websites or services, or integrate with third-party services. This Privacy Policy does not apply to those third-party services. We are not responsible for the privacy practices of third parties or the content of their websites or services.
We encourage you to review the privacy policies of any third-party services you access through the App.
9. LOCAL STORAGE
The App stores data locally on your device to provide its functionality. This includes:
- Measurement history and saved measurements
- App settings and preferences
- Unit preferences
- Exported data files
This data is stored securely on your device and is only accessible to the App, unless you choose to share it through other applications or services. You can delete this data by uninstalling the App or by using the App's built-in data management features.
10. CHANGES TO THIS PRIVACY POLICY
We may update this Privacy Policy from time to time. When we do, we will revise the "last updated" date at the top of this policy. We encourage you to review this Privacy Policy periodically to stay informed about how we are protecting your information.
If we make material changes to this Privacy Policy, we will notify you by posting a notice in the App or by sending you an email, where possible. Your continued use of the App after the effective date of the revised policy constitutes your acceptance of the revised policy.
11. CONTACT US
If you have any questions or concerns about this Privacy Policy or our privacy practices, please contact us at:
We will respond to your inquiry as soon as reasonably possible, typically within 30 days.
12. JURISDICTION-SPECIFIC PROVISIONS
This section provides additional information for users in certain jurisdictions.
12.1 European Economic Area (EEA)
If you are located in the EEA, we process your personal information based on the following legal bases:
- Performance of a contract: To provide you with the App and its features
- Legitimate interests: To improve the App, diagnose technical issues, and protect our users
- Consent: For certain optional features, where you have given your explicit consent
You have the right to lodge a complaint with a supervisory authority if you believe our processing of your personal information violates applicable data protection laws.
12.2 California
California residents have certain rights under the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA), including the right to:
- Know what personal information we collect, use, disclose, and sell
- Request deletion of your personal information
- Opt-out of the sale of your personal information (though we do not sell personal information)
- Correct inaccurate personal information
- Limit the use and disclosure of sensitive personal information
To exercise these rights, please contact us at 3dceliang6377@163.com. We will verify your identity before processing your request, which may include requiring you to provide certain information or documentation.
We do not discriminate against you for exercising any of your rights under the CCPA or CPRA.
12.3 Brazil
Brazilian residents have certain rights under the Brazilian General Data Protection Law (LGPD), including the right to:
- Confirm the existence of processing of personal data
- Access your personal data
- Correct inaccurate, incomplete, or outdated data
- Anonymize, block, or delete unnecessary or excessive data, or data processed in violation of the LGPD
- Port your data to another service provider
- Delete personal data processed with your consent, except when retention is required by law
- Revoke consent at any time, without affecting the lawfulness of processing based on consent before its revocation
- Object to the processing of your personal data
To exercise these rights, please contact us at 3dceliang6377@163.com. We will respond to your request within the timeframes required by law.
13. MISCELLANEOUS
13.1 Governing Law
This Privacy Policy is governed by the laws of the jurisdiction where the App is offered, without regard to its conflict of law principles.
13.2 Entire Agreement
This Privacy Policy constitutes the entire agreement between you and us regarding the processing of your personal information, superseding any prior agreements or understandings.
13.3 Severability
If any provision of this Privacy Policy is found to be invalid, illegal, or unenforceable, the remaining provisions will continue in full force and effect.
13.4 Waiver
Our failure to enforce any provision of this Privacy Policy will not be deemed a waiver of that provision or any other provision.
13.5 Assignment
We may assign this Privacy Policy and our rights and obligations under it to any party, without notice to you. You may not assign this Privacy Policy or your rights under it without our prior written consent.