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Privacy Policy

Last updated: 2026-08-05

Hangzhou Boxun Technology Co., Ltd. (杭州泊巡科技有限公司) ("we", "ProSill") is the developer of the SAINTY mobile app — listed on Google Play and the Apple App Store as "SAINTY" / "SAINTY 安格屋" (Android package name com.sainty.app) — and of the ProSill™ web platform at prosill.com, used for custom window and door order tracking, installer certification and after-sales warranty. This single policy applies to the SAINTY Android app, the SAINTY iOS app and the ProSill™ website. It explains what personal data we collect, how we use and share it, how long we keep it, how it is secured, and how you can delete it.

0. Apps and services covered

App name: SAINTY (SAINTY 安格屋) — Google Play, package name com.sainty.app.

SAINTY iOS app — Apple App Store.

ProSill™ website and web app at https://prosill.com and https://sainty.prosill.com.

Google Play developer name: 杭州泊巡科技有限公司 (Hangzhou Boxun Technology Co., Ltd.) — the same legal entity that publishes this app. Data controller / developer: Hangzhou Boxun Technology Co., Ltd. (杭州泊巡科技有限公司). Privacy contact: support@prosill.com. Account and data deletion: https://prosill.com/account-deletion.

1. Information we collect

Account data: name, email address, phone or WhatsApp number, company, and role (customer, dealer, factory staff, installer).

Business content: orders, order numbers, project titles, drawings, photos, videos, messages and quotes you upload or exchange with other participants of an order.

Certification data: exam answers, results, installation videos and certificates issued to installers.

Location data: only the approximate service area (city / region) an installer or factory chooses to publish so nearby customers can find them. We do not track continuous device location in the background.

Technical data: device type, browser, IP address, pages visited and timestamps, used for security and product improvement.

Sign-in data: if you sign in with Google or Apple, we receive your name and email address from that provider to create your account. We never receive your password.

Push notification token: a device token issued by Google (FCM) or Apple (APNs) so we can deliver order and message notifications. You can disable notifications at any time in the app or in system settings.

Camera and photo library: only the photos, videos or documents you actively choose to capture or select are uploaded. We do not access your media in the background.

2. How we use information

To provide order tracking across the 7 production and delivery stages and notify the right participants.

To operate installer certification, issue warranty QR codes and honour the 10-year warranty programme.

To send transactional email or push notifications about your orders, inquiries and certifications. You can turn notifications off in the app.

To prevent abuse, debug failures and improve the service.

We do not sell personal data and we do not use your business content for advertising.

3. Sharing

Order content is visible only to participants of that order (customer, factory, forwarder, installer, invited collaborators) and platform administrators.

Public listings (installer or factory profiles you choose to publish, public showcase cases) are visible to anyone.

Service providers: cloud hosting and database, email delivery, push notification delivery and machine translation. They process data on our instructions only.

We disclose data to authorities only when required by applicable law.

4. International transfers

ProSill serves users in China, the United States and other markets. Data may be stored and processed outside your country of residence. We apply contractual and technical safeguards for such transfers.

5. Retention

Order and warranty records are kept for the duration of the 10-year warranty period, because they are the evidence of coverage. Account data is kept while your account is active. Technical logs are kept for a limited period and then purged automatically.

6. Your rights

You may access, correct, export or delete your personal data, withdraw consent, and object to processing. Requests: support@prosill.com.

You can delete your account at any time — see the Account Deletion page. Deleting your account removes your profile and personal identifiers; shared order records remain visible to the other participants of those orders in anonymised form where legally required.

7. Children

ProSill is a business tool and is not directed at children under 16. We do not knowingly collect their data.

8. Security

Data is encrypted in transit, access is restricted by row-level security rules so that each user only reaches their own orders, and administrative access is limited and logged.

9. Contact

Hangzhou Boxun Technology Co., Ltd. (杭州泊巡科技有限公司) — support@prosill.com. We answer privacy requests within 30 days.