Vivid 4D 隐私政策 | Privacy Policy

1. 我们如何收集和使用您的信息

1.1 我们非常重视您的隐私。在您使用本服务的过程中，我们不会主动收集、存储或处理您的任何个人身份信息、账号信息或应用内行为数据。本应用作为一款本地运行的混合现实（MR）播放器，无需您注册账号即可使用。

1.2 请您理解，在以下情形中，根据法律法规规定，我们可能无需征得您的授权同意即可收集和使用您的个人信息：

您订立、履行您作为一方当事人的合同所必需的；
与我们履行法律法规规定的职责或义务相关的；
为应对突发公共卫生事件，或者紧急情况下为保护自然人的生命健康和财产安全所必需的；
为公共利益实施新闻报道、舆论监督等行为，在合理的范围内处理个人信息的；
在合理的范围内依法处理您自行公开或者其他已经合法公开的个人信息；
法律法规规定的其他情形。

1. How We Collect and Use Your Information

1.1 We highly value your privacy. During your use of this service, we do not actively collect, store, or process any of your personal identification information, account information, or in-app behavioral data. As a locally running Mixed Reality (MR) player, this application does not require you to register an account to use it.

1.2 Please understand that in the following cases, in accordance with laws and regulations, we may collect and use your personal information without obtaining your prior authorization and consent:

It is necessary for you to enter into and perform a contract to which you are a party;
It is related to our performance of duties or obligations under laws and regulations;
It is necessary to respond to public health emergencies or to protect the life, health, and property of natural persons in emergencies;
It is within a reasonable scope to process personal information for public interest, such as news reporting and supervision by public opinion;
It is within a reasonable scope to process personal information disclosed by yourself or other legally disclosed personal information;
Other circumstances stipulated by laws and regulations.

2. 权限使用说明

为了向您提供本服务，我们可能申请使用如下设备权限：

权限名称	权限功能说明	使用场景或目的
CAMERA (摄像头/透视权限)	访问设备摄像头以获取外部环境画面。	用于实现混合现实（MR）透视功能，将 4D 高斯内容与您的真实环境融合。请注意：摄像头数据仅在设备本地进行实时渲染处理，我们绝不会录制、存储或向任何服务器传输您的摄像头画面或空间数据。

2. Permission Usage

In order to provide you with this service, we may request the following device permissions:

Permission Name	Description	Scenario or Purpose
CAMERA (Camera/Passthrough Permission)	Access the device camera to obtain the external environment view.	Used to enable Mixed Reality (MR) passthrough, blending 4D Gaussian content with your real environment. Please note: Camera data is only processed locally on the device for real-time rendering. We will NEVER record, store, or transmit your camera feed or spatial data to any server.

3. 自动续订订阅服务

3.1 我们的应用提供自动续订订阅服务，订阅内容包括定期更新的 4D 内容和专属功能。

订阅名称：Vivid 4D Pro
订阅时长：1个月
订阅价格：$7.99 / 月
订阅将自动续订，除非在当前订阅期结束前至少24小时取消订阅。
订阅费用将通过您的 iTunes 账户收取。
您可以通过账户设置随时管理订阅和关闭自动续订功能。

有关更多信息，请参阅以下链接：

3. Auto-Renewable Subscription Service

3.1 Our app offers an auto-renewable subscription service, which includes regularly updated 4D content and exclusive features.

Subscription Name: Vivid 4D Pro
Subscription Duration: 1 month
Subscription Price: $7.99 / month
The subscription will automatically renew unless canceled at least 24 hours before the end of the current subscription period.
The subscription fee will be charged through your iTunes account.
You can manage your subscription and turn off auto-renewal at any time through your account settings.

For more information, please refer to the following links:

4. 信息共享与变更

4.1 由于我们不收集您的个人信息，我们不会将您的信息用于任何其他商业目的。

4.2 如我们对本隐私政策有重大变更（例如未来因功能升级需要收集特定信息），我们会在变更前，以应用内消息的方式告知并征得您的同意。

4. Information Sharing and Changes

4.1 Since we do not collect your personal information, we will not use your information for any other commercial purposes.

4.2 If there are material changes to this Privacy Policy (e.g., if we need to collect specific information for future feature upgrades), we will notify you and ask for your consent via in-app messaging before the changes take effect.

5. 联系我们

如果您对本隐私政策有任何疑问、意见或建议，请通过以下方式与我们联系：

电子邮箱 / Email：victor.ffc@prometh.xyz

我们将尽快审核所涉问题，并在法律规定的期限内予以回复。

5. Contact Us

If you have any questions, comments, or suggestions regarding this Privacy Policy, please contact us through the following methods:

Email: victor.ffc@prometh.xyz

We will review the issue as soon as possible and respond within the timeframe required by law.