我们收集你的电子邮箱用于身份验证，并收集你自愿录入的儿童生长数据（姓名、出生日期、性别、体重、身高等测量值）。收集这些数据仅仅是为了提供生长追踪服务。
Your data is stored in a self-hosted PostgreSQL database protected by row-level access control (RLS) and encrypted in transit (TLS). Database backups are compressed and stored with Backblaze B2. We use Plausible Analytics, a cookieless and privacy-friendly analytics tool, to measure aggregate page usage. We never sell your data.
You have the right to access, correct, export, and delete your data at any time. To exercise these rights, email privacy@growchart.app or use the in-app export and deletion features. We will process your request within 30 days.privacy@growchart.app or use the in-app export and deletion features (Settings → GDPR & Health Data Privacy). We will process your request within 30 days.
我们只使用一个用于登录的必要会话 Cookie。不使用任何追踪或广告 Cookie。
We use Paddle and Stripe for payment processing, Resend for transactional email, Plausible for privacy-friendly analytics, Google Fonts for typography, Sentry for error monitoring, Backblaze B2 for backup storage, and Anthropic / OpenRouter / Google (Gemini) for the optional AI advisor. No data is sold to any third party.
GrowChart 由成年人（父母/监护人）代为孩子操作。我们不会有意直接向 13 岁以下儿童收集数据。