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Huminteresting Visiano Piano visuals that keep hands visible Coming to the Mac App Store
Privacy Privacy Policy
The following document corresponds to the Mac App Store version of Visiano and is published here as a public policy page.
Last updated: April 14, 2026
Effective date: April 15, 2026
Visiano ("the App") is operated by Beijing Huminteresting Intelligent Technology Development Center ("we", "us", or "our"). We understand the importance of your personal information and are committed to protecting your privacy. Please read this Privacy Policy carefully before using the App.
1. Information We Collect
1.1 Camera Feed
The App uses your device's camera to capture piano imagery for real-time visual overlay.
- Camera feed is processed locally on your device only and is never uploaded to any server.
- We do not store, record, or cache camera feed.
- We do not perform facial recognition or any biometric analysis on camera feed.
1.2 Anonymous Usage Statistics
To understand how the App is used and improve its features, we collect anonymous usage statistics through TelemetryDeck, including:
- Event names (e.g., feature usage, page views)
- App version and build number
- Operating system version
- Device model
- Language and region settings
TelemetryDeck uses differential privacy for data aggregation. It does not collect any personally identifiable information, does not track user identity, and does not associate device identifiers. For details, see the TelemetryDeck Privacy Policy.
1.3 Crash Reports
To improve App stability, we collect crash reports through Sentry, including:
- Crash stack traces
- Device model
- Operating system version
- App version
Crash reports do not contain personally identifiable information. We have disabled Sentry's personal data collection (sendDefaultPii = false). For details, see the Sentry Privacy Policy.
1.4 Performance and Diagnostic Data
To analyze App performance and investigate system-level stability issues, the App may receive system-generated aggregated performance and diagnostic summaries through Apple's MetricKit framework, including:
- Aggregated performance metrics such as app launch, resume time, responsiveness, CPU, GPU, and peak memory usage
- System diagnostic summaries such as hang events and CPU exception diagnostics
- Diagnostic-related metadata such as device model, operating system version, build number, and platform architecture
- A randomly generated anonymous installation-level client identifier used for telemetry aggregation, deduplication, and diagnostic analysis
This functionality is used only to receive and analyze the system-generated aggregated performance and diagnostic summaries and related metadata described above. Data processed through this functionality is generally not sufficient to directly identify your real-world identity. The randomly generated anonymous installation-level client identifier used for telemetry aggregation, deduplication, and diagnostic analysis is stored only in the local app preferences for the current installation and is removed together with that installation's local data when you uninstall the App.
1.5 User Feedback (Optional)
When you voluntarily use the in-app feedback feature, we collect:
- Your feedback message
- Feedback category
- Contact email (optional, only if you choose to provide it)
- App version, operating system version, device model, and locale
This information is sent to our server systems and used solely to address your feedback and improve the product.
1.6 Purchase and Subscription Information
Subscriptions and purchases in the App are processed through the Apple App Store and StoreKit framework. Apple is responsible for billing, subscription management, and refunds. We do not directly collect or store your payment credentials (such as bank card information or Apple ID passwords).
On your device, the App may read transaction or entitlement status provided by Apple to determine whether to unlock corresponding features. Purchase data processing is governed by the Apple Privacy Policy.
1.7 Information We Do Not Collect
The App does not collect the following:
- Name, phone number, government ID, or other personal identity information
- Precise geolocation
- Contacts, photo library, or other sensitive device data
- Advertising identifier (IDFA) or other system-provided device-level identifiers
- Browsing history or search history
For the randomly generated anonymous installation-level client identifier used for telemetry aggregation, deduplication, and diagnostic analysis, please see Section 1.4 above.
2. How We Use Information
| Information Type | Purpose |
|---|---|
| Camera feed | Core piano visualization functionality (local processing only) |
| Anonymous usage statistics | Understand feature usage and guide product improvements |
| Crash reports | Identify and fix software defects, improve stability |
| Performance and diagnostic data | Analyze App performance, investigate system-level stability issues, and improve the product experience |
| User feedback | Respond to your inquiries and improve the product |
| Purchase and subscription status | Determine whether to unlock corresponding features based on transaction or entitlement status provided by Apple; billing, subscription management, and refunds are handled by Apple |
We do not use your information for advertising, user profiling, or sale to third parties.
3. Third-Party Services
The App integrates the following third-party services, which may process certain data in the course of providing their services:
| Service | Purpose | Data Processing | Privacy Policy |
|---|---|---|---|
| TelemetryDeck | Anonymous usage statistics | Differential privacy aggregation, no PII | View |
| Sentry | Crash reports | Crash stack traces and device info, no PII | View |
| Apple MetricKit | Performance and diagnostic summaries | System-generated aggregated performance metrics and diagnostic summaries are delivered to the App on device; the App may send selected summaries to our servers for analysis | View |
| Apple App Store / StoreKit | In-app purchases, subscription management, refunds | Transaction, subscription, and payment data processed by Apple per its own policies | View |
For the third-party services listed above, we share relevant data only to the extent necessary to achieve the purposes described in this Policy, and we require such providers to provide privacy and security protection no less protective than that described in this Policy and required by applicable law.
4. Data Storage and Security
- Local processing: Camera feed and user preferences are stored only on your device.
- Anonymous statistics and crash reports: Stored and processed on TelemetryDeck and Sentry servers. Retention and deletion of such data are subject to the relevant service providers' published policies and standard retention mechanisms.
- Performance and diagnostic summaries: After being received by the App from MetricKit, selected summaries are transmitted to and stored on our servers located in mainland China for analysis. We retain such summaries only for the period necessary to perform performance analysis, stability investigations, and product improvement, after which they are deleted.
- User feedback: Stored on our servers located in mainland China. Feedback content and contact email (if provided) will be retained for no more than two years after the feedback has been resolved, after which it will be deleted or anonymized.
We take reasonable technical and organizational measures to protect data security, including transport encryption (HTTPS) and access controls. However, please understand that no method of transmission over the Internet is completely secure.
5. International Data Transfers
Depending on where you use the App, your data may be processed in multiple jurisdictions.
TelemetryDeck and Sentry may process anonymous usage statistics and crash reports on servers located in the European Union, the United States, or other jurisdictions.
User feedback, and performance and diagnostic summaries generated through MetricKit and uploaded by the App, are stored and processed on our servers located in mainland China.
In addition, if you purchase subscriptions or digital products through the Apple App Store, the related transaction data is independently processed by Apple in accordance with its privacy policy.
6. Children's Privacy
The App is not directed at children under the age of 13 (or the applicable age in your jurisdiction). We do not knowingly collect personal information from children. If you become aware that a child has provided us with personal information, please contact us and we will promptly delete it.
7. Your Rights
Under applicable data protection laws (including but not limited to the Personal Information Protection Law of the People's Republic of China and the EU General Data Protection Regulation), you may have the following rights:
- Right to be informed: Know how we collect and use your information.
- Right of access: Request access to data we hold about you.
- Right to rectification: Request correction of inaccurate personal information.
- Right to erasure: Request deletion of data we hold about you.
- Right to withdraw authorization: You may withdraw your authorization for specific data processing at any time. For camera access, you can revoke permission in macOS System Settings; for feedback, you may choose not to submit it. For anonymous usage statistics, crash reports, and performance and diagnostic summaries, because such data generally cannot be directly linked to your identity, certain withdrawal, access, or deletion requests may be subject to technical limitations.
- Right to data portability: Request your data in a structured format (applicable under GDPR).
To exercise any of these rights, please contact us using the information below. We will respond to your request within a reasonable period (typically no more than 30 days).
Because the anonymous usage statistics, crash reports, and performance and diagnostic summaries collected by the App generally do not contain information that directly identifies you, we may be unable to associate such data with you personally. These rights may therefore not apply, or may be subject to technical limitations, for such data.
8. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. The updated policy will be published within the App or on our official website. If we make material changes (such as collecting new types of personal information or significantly changing the purposes of data use), we will notify you prominently within the App and take appropriate measures as required by applicable law.
9. Contact Us
If you have any questions, comments, or requests regarding this Privacy Policy, please contact us at:
- Email: support@huminteresting.com