Privacy Policy

Last updated: June 10, 2026

This Privacy Policy describes how PDgo, a product of Xiamen Guangxu Zaodong Network Technology Co., Ltd., handles information when you use the app.

Information used by PDgo

PDgo uses the device's front TrueDepth camera (camera frames, depth data, and face landmarks) solely to estimate pupillary distance. All processing happens on your device in real time. Camera frames, depth data, and face landmarks are never stored and never uploaded to any server. PDgo has no account system and does not require sign-in. We do not use this data for advertising, analytics, or user profiling.

Measurement records

PDgo stores measurement records only on your device so you can review past results. Records include total PD, left/right PD, a confidence rating, measurement time, and an optional name label that you enter. Deleting the app deletes these records.

Purchases

In-app purchases are processed entirely by Apple. We do not receive or store your payment card details. Purchase entitlements are verified on the device through Apple's StoreKit framework.

Support contact

If you contact us by email, we may receive your email address, message content, and any information you choose to provide. We use this only to respond to your request and maintain product support records.

Children

PDgo is not intended to collect personal information from children without appropriate consent. If you believe a child has provided information to us, contact developer@lumaseq.com.

Contact

For privacy questions, contact developer@lumaseq.com.