EyeRef Privacy Policy

Your reference stays on your wrist.

EyeRef is an offline ophthalmic educational quick-reference app for smartwatches. This policy applies to EyeRef on all supported platforms.

Privacy at a glance

No accounts · No data collection · Offline by design

Nothing leaves your watch. Reference material and calculations run locally, without analytics, tracking, or cloud services.

Effective date: 30 September 2026

01 — Information collection and sharing

EyeRef does not collect, transmit, sell or share personal information, health information or other user data. The app has no user accounts, advertising, analytics, tracking or cloud service.

02 — On-device operation

The app’s reference material and calculations run locally on the watch. Refraction values entered into the calculator are temporary calculation inputs for the current app session. They are not transmitted outside the device and EyeRef does not provide a patient-record system.

EyeRef requests no network, location, camera, microphone, sensor or file-storage permission.

03 — Patient data

Do not enter or store patient names, identifiers, records or other patient data in EyeRef. The app is not designed or intended to store patient information.

04 — Children’s privacy

EyeRef is intended for adult ophthalmology professionals and trainees. It is not directed to children, and the app does not knowingly collect information from anyone, including children.

05 — Clinical and medical-device disclaimer

EyeRef is an educational quick-reference aid, not a medical device. It does not diagnose disease, recommend treatment or replace a complete examination, professional clinical judgment, supervision, or applicable local guidance. Users remain responsible for independently verifying information before clinical use.

06 — Third parties

EyeRef contains no third-party advertising or analytics SDKs and sends no data to the developer or third parties. The app stores or platform services used to download or install EyeRef may process information under their own privacy policies independently of EyeRef.

07 — Changes to this policy

If EyeRef’s data practices change, this policy and the in-app privacy information will be updated before those changes take effect. The effective date above identifies the current version.

08 — Contact

For privacy questions, contact the EyeRef developer at contact@tilmanjrauh.com.