Last Updated / 最后更新 / Letzte Aktualisierung: 2026-03-18

Part 1: Privacy Policy (English)

1. Core Privacy Promise HDR Transformer is a derivative product of Prismatik and inherits its "Privacy-First" philosophy. All image processing is designed to be completely private and secure.

• Local Processing: All HDR simulation, format conversion, gain map generation, and metadata analysis are performed locally on your device. We never have access to your photos.
• No Data Collection: We do not collect, store, or transmit your photos, personal information, or any usage data to external servers. Your files never leave your device.

2. Permissions & Usage

• Photo Library: Used strictly to allow you to select photos for HDR simulation or conversion. We only read the specific images you choose and write the final HDR results back to your library (upon your explicit request).
• Camera: Not used. (The parent app Prismatik uses it for QR codes; HDR Converter does not require camera access.)

3. Analytics & Third-Party

• No Tracking: We do not use any third-party analytics SDKs (like Firebase) or advertising networks. There are no tracking components within the app.
• Crash Reports: Anonymous, non-personal crash reports may be sent to Apple (if you have opted-in via iOS settings) to help improve app stability.

Part 2: 隐私政策 (中文)

1. 核心隐私承诺 HDR转换器 是析图 (Prismatik) 的衍生产品，秉承其“隐私至上”的设计理念。所有图像处理均在本地完成，确保您的数据安全。

• 本地处理：所有的 HDR 模拟、格式转换、Gain Map 生成及元数据处理均通过 Apple 原生框架在您的设备本地完成。
• 零收集：我们不会收集、存储或传输您的照片、个人信息或任何使用数据至外部服务器。您的文件始终保留在您的设备上。

2. 权限使用说明

• 相册权限：仅用于您主动选择照片进行 HDR 模拟或转换，以及将处理后的 HDR 照片保存至您的相册。我们不会读取您未选中的任何照片。