Last updated: July 2026
Phos does not collect, store, or transmit any personal data. Everything you measure stays on your device.
Nothing. Phos has no account and no sign-in. We do not collect your name, email, contacts, location, or any usage analytics.
Phos uses the camera for one purpose: to measure the light in front of it. Frames are analyzed live on your device to calculate exposure, and are never recorded, saved, or sent anywhere.
Your saved readings — exposure values and any notes you add — are stored only on your device (in Apple's on-device database). Phos has no server and works fully offline.
Phos contains no advertising, no third-party analytics, no trackers, and no external SDKs. No data is shared with anyone.
Phos Pro is a one-time purchase handled entirely by Apple. Payments are processed by the App Store; Phos never sees your payment details.
You can delete any reading at any time, and Pro users can export their readings. Deleting the app removes all stored data from your device.
Phos is rated 4+ and knowingly collects no information from anyone, including children.
If this policy changes, the updated version will be posted on this page.
Questions? Email enes@rhoagency.net.