PD Meter: Pupillary Distance — Privacy Policy
Last updated: 2026-06-27
This app is built to respect your privacy. We do not sell your personal data, and
your photos, media, and precise content stay on your device. This policy explains
the limited data the app uses.
INFORMATION THE APP USES
- your device's front camera (used only so you can take a reference selfie, with a standard-size card for scale, to measure your pupillary distance; images are processed live on your device and are never recorded, saved, or uploaded). The app does not use your location or microphone.
- anonymous diagnostics and crash reports (via Google Firebase Analytics and Crashlytics) to keep the app stable.
- an advertising identifier and related data used by Google AdMob to show ads. On iOS, the app asks for your permission via App Tracking Transparency (ATT) before any tracking, and uses Google's UMP consent flow to honor GDPR/EEA choices. You can decline tracking and the app keeps working with non-personalized ads.
HOW IT IS USED
Camera frames are analyzed on your device to estimate your pupillary distance. Your settings are stored on your device only. We use the data above only to
provide the app's features, to keep the app stable, and (with your consent) to show
ads. We do not build advertising profiles ourselves and we do not upload your photos,
videos, or files to our servers.
ADVERTISING IDENTIFIER & OPT-OUT
Google AdMob may use an advertising identifier to deliver and measure ads. You can
limit or reset this identifier in your device settings (iOS: Settings > Privacy &
Security > Tracking and Apple Advertising; Android: Settings > Google > Ads), and you
can decline tracking to receive non-personalized ads.
DATA RETENTION & YOUR CONTROL
Settings and content you create are stored on your device and are removed when you
delete the app. You can revoke camera or tracking permissions at any time in the iOS Settings
app; the app will continue to work with reduced features.
THIRD-PARTY SERVICES
The app may use: Google Firebase (Analytics, Crashlytics), Google AdMob (ads).
Their handling of data is governed by their own privacy policies:
- Google Firebase: https://firebase.google.com/support/privacy
- Google AdMob: https://policies.google.com/technologies/ads
CHILDREN
This app is not directed to children under 13 and does not knowingly collect personal
information from children.
CHANGES TO THIS POLICY
We may update this policy from time to time. Changes will be reflected by the "Last
updated" date above.
CONTACT
For any privacy question, contact the developer through the app's App Store listing.