隐私政策

我们收集的信息

Weight Scale 的设计充分考虑了隐私。我们仅收集提供服务所需的最少数据：

• Anonymous Authentication: We use Firebase Anonymous Authentication to create a unique identifier for your device. No personal information (name, email, phone number) is collected.
• Scan Counter: We maintain a count of scans performed per anonymous user ID in Firebase Firestore. This is used solely to enforce free-tier limits.
• Camera Images: When you scan an object, the photo is sent to Google's Gemini API via a Firebase Cloud Function for weight estimation. Images are processed in real-time and are NOT stored on our servers.
• Analytics: We use PostHog for anonymous usage analytics and session recording to improve the app experience. No personally identifiable information is tracked.
• Error Monitoring: We use Sentry to capture error logs for debugging purposes. No personal data is included in error reports.

我们如何使用你的信息

我们使用收集到的有限数据来：

• Provide AI-powered weight estimation via the Gemini API
• Enforce free-tier scan limits (3 free scans)
• Improve app performance and fix bugs
• Understand anonymous usage patterns to improve the product

第三方服务

Weight Scale 使用以下第三方服务：

• Firebase (Google) — Anonymous authentication and Cloud Functions for Gemini API proxy
• Google Gemini API — AI image processing for weight estimation
• PostHog — Anonymous analytics and session recording
• Sentry — Error monitoring and crash reporting
• Apple StoreKit 2 — Subscription payment processing (handled entirely by Apple)

数据共享

我们不会向第三方出售、交易或共享你的个人数据。我们不投放广告。唯一传输给第三方的数据是发送给 Google Gemini API 进行处理的相机图像，该图像不会被存储。

儿童隐私

Weight Scale 不会故意收集 13 岁以下儿童的个人信息。由于我们使用匿名身份验证且不收集任何个人数据，因此本应用适合所有年龄段使用。

本政策的变更

我们可能会不时更新本隐私政策。我们将通过在此页面发布新的隐私政策并更新“最后更新”日期来通知你任何变更。

联系我们

如果你对本隐私政策有任何疑问，请通过 contact@lume.gg 联系我们。