Please read this Policy before using StellarCanvas. The system may show an additional permission notice before an optional feature is used. Refusing an optional permission normally affects only the corresponding feature.
Scope and controller
This Policy applies to the StellarCanvas HarmonyOS client and related services directly provided by the developer. StellarCanvas is a digital painting application for HarmonyOS tablets and 2-in-1 devices.
The developer and personal information controller is Changsheng Zou. This Policy does not govern independently operated websites, app stores, system services, print services, or other external services, which process information under their own terms and privacy policies.
The current version does not require a StellarCanvas account and does not provide in-app payments, advertising, or personalized recommendations based on user behavior.
Information we process
2.1 Artwork, projects, and files
When you create, open, edit, import, export, save, or share artwork, StellarCanvas processes on your device the canvases, layers, images, animation frames, color profiles, brush resources, document metadata, and supported files—including KRA, ORA, PSD, and common image formats—that you select.
This content is stored by default on your device, in the App sandbox, or in a location selected through the system file picker. We do not automatically upload artwork, project files, or their contents to a developer-operated server.
2.2 App settings and local state
To preserve your workspace, the App may locally store language and theme choices, window and panel layouts, canvas state, tool and brush settings, recent-file records, resource indexes, caches, thumbnails, recovery data, and other preferences.
2.3 Clipboard and shared content
When you actively copy, cut, paste, create from the clipboard, share, or perform a similar action, the App may read or write the current clipboard contents and hand a selected file to HarmonyOS or a destination app. StellarCanvas does not continuously read the clipboard for advertising, profiling, or background monitoring, and it does not automatically send clipboard contents to the developer.
2.4 Network access and basic technical information
When you use Latest News, open the Help Center, or access other online content, your device sends a request to the relevant website or service. Technical information required to provide the site may include IP address, request time, user agent, operating system or browser type, request path, response status, and necessary security logs.
The App may also read network connectivity state locally to determine whether online content is available and to show connection errors. Network state is not precise location, and we do not use it to infer your movements.
2.5 Feedback and support information
If you contact us by email or another channel, we process the name or form of address, contact information, description, screenshots, logs, and attachments you provide to answer questions, troubleshoot problems, and handle rights requests. Do not include unrelated passwords, identity numbers, financial accounts, unpublished artwork, or other sensitive information.
2.6 Items the current version does not process
Based on the current features and permission configuration, StellarCanvas does not actively obtain precise location, contacts, call logs, SMS, camera, or microphone data. It does not include a developer-operated account system, an advertising SDK, or cross-app tracking for marketing. If a future feature materially changes this position, we will update this Policy and obtain authorization where required before processing begins.
Device permissions and system capabilities
The current version may declare or use the following HarmonyOS permissions and capabilities for painting, file, and online features. Names and authorization flows may vary by system version.
Purposes and principles
We process information only to the extent reasonably necessary for a clear function, principally to:
- create, open, edit, save, import, export, print, and share digital artwork;
- maintain the local creative experience, including brushes, colors, layers, workspace, recent files, and recovery state;
- display App news, help content, and necessary online resources;
- check network or file state, maintain compatibility, troubleshoot problems, and protect security;
- answer inquiries and handle complaints, rights requests, and feedback you submit; and
- meet applicable legal obligations.
Unless clearly disclosed with a lawful basis, we do not use your artwork to train AI models, build advertising profiles, or conduct analysis unrelated to these purposes.
Online features and third-party services
5.1 StellarCanvas website and news feed
The Latest News feature accesses a public feed under stellarcanvas.dhuzcs.com when you use that feature. The website and its hosting or content-delivery providers may process the basic technical information described in Section 2.4 to deliver pages, prevent attacks, and troubleshoot errors. Artwork files are not uploaded with this request.
5.2 Help Center and external links
When you open the StellarCanvas Help Center, the developer website, or another external link, that website may process access information under its own privacy rules. After leaving StellarCanvas, review the operator and privacy notice of the destination page.
5.3 HarmonyOS, AppGallery, and system services
App download, installation, updates, permission management, system file selection, media library, clipboard, printing, backup, and device migration are provided by HarmonyOS, AppGallery, or a system service you choose. These services may process device identifiers, account information, download records, files, or other necessary information under Huawei's or the relevant provider's privacy policy.
5.4 Third-party files, resources, and print services
Third-party documents you open, brushes or resources you import, external links in artwork, and a printer, print plug-in, or share destination you select may be independently operated by a third party. Open only trusted files and review a third-party service's permissions and privacy rules before use.
5.5 This Privacy Policy website
This site does not set cookies for advertising or cross-site tracking, does not use browser local storage, and has no visitor account, comment, or form feature. The server or hosting provider may still keep basic access logs to deliver the site normally.
Sharing, transfer, and disclosure
We do not sell personal information and do not actively provide artwork to third parties. Relevant information may be provided to or processed by another entity only where:
- you actively use sharing, export, printing, an external link, system backup, or a similar feature and choose the recipient or system service;
- website hosting, cybersecurity, or content-delivery services process basic access data as necessary to provide online content you request;
- you separately consent or another lawful basis applies;
- disclosure is required by law, legal process, or a lawful request from a competent authority; or
- information must be transferred in a merger, separation, asset transfer, or similar transaction, in which case we will provide legally required notice and require the recipient to continue the applicable obligations.
When you transmit a file through system sharing, printing, or an external application, the recipient processes that file under its own rules. Confirm the recipient and content before proceeding.
Storage, backup, and retention
- Artwork and projects: generally remain on your device, in the App sandbox, or in a location you designate until you delete or overwrite them, clear App data, or uninstall the App. Files in an external location are not necessarily removed by uninstalling.
- Local settings and caches: remain until no longer needed for the feature or workspace recovery, or until you clear caches or App data or uninstall.
- System backup and migration: if HarmonyOS backup, cloud synchronization, or device migration is enabled, the system may back up or transfer some App data according to your settings. The system service controls that process, and the developer does not directly receive the backup as a result.
- Website access logs: are retained by the relevant website, host, or security provider for a reasonable period needed for operations, security audits, and troubleshooting, then deleted or anonymized unless law requires otherwise.
- Support records: email, attachments, and handling records you voluntarily submit are retained for the period needed to complete support, dispute resolution, security auditing, and legal obligations.
If information is processed outside China by a third-party service you choose, that processing is determined by the third party and governed by its privacy rules. StellarCanvas does not actively transfer artwork abroad for the developer's own analytics.
Security
We use safeguards proportionate to the current product and risks, including local-first artwork processing, feature-specific permissions, system file authorization, HTTPS for official online content, and limits on unnecessary collection.
No Internet transmission or electronic storage is absolutely secure. Keep the system and App updated, use caution with files, scripts, resources, or links from unknown sources, protect your device, and review content for anything you do not wish to disclose before sharing, printing, or submitting logs.
If a security incident may affect your rights, we will take remedial action as required by law and provide appropriate notice describing the incident, possible impact, measures taken, and recommended precautions.
Your rights
Subject to applicable law, you may request access to, a copy of, correction or supplementation of, or deletion of personal information we process; ask for an explanation of the processing rules; withdraw consent; restrict or object to particular processing; and make a complaint.
You can directly manage information on your device by:
- deleting artwork, recent records, caches, or other local files in the App or system file manager;
- revoking optional permissions in HarmonyOS settings;
- managing copies in system backup, cloud storage, or device migration settings; and
- clearing App data or uninstalling the App after first backing up artwork you wish to retain.
For support records or website-related information held by the developer, use the contact details below. We may verify your identity to protect security. If law requires retention or the information cannot technically be identified in isolation, we will explain the situation.
Children
StellarCanvas is a general-purpose digital painting tool and is not specifically directed to children under 14. A child under 14 should use the App, access online services, or submit information to us only with the consent and guidance of a parent or other guardian.
If a guardian believes a child provided personal information to the developer without consent, please contact us. We will verify and handle the matter as required by law.
Policy updates
We may update this Policy when App features, permissions, third-party services, or legal requirements change. The revised page will show new updated and effective dates. For a change that may materially affect your rights, we will provide notice through the App, official website, or another appropriate method and obtain consent again where required.
We recommend reviewing this Policy after a major App update. If you disagree with an update, you may stop using the relevant feature and manage or export artwork stored on your device.
Contact us
For a question about this Policy, a personal information rights request, a complaint, or a security concern, contact us as follows:
- Developer
- Changsheng Zou
- zcs2004@126.com
- Official website
- https://stellarcanvas.dhuzcs.com/
- Help Center
- https://helpstellarcanvas.dhuzcs.com/zh_CN/index.html
- Developer website
- https://per.dhuzcs.com/
- Privacy Policy
- https://privacypolicystellarcanvas.dhuzcs.com/en.html
After verifying identity, we will handle reasonable requests within the period required by law.