SEGY/SEGD Explorer · Privacy

Privacy Policy

Effective date: 26 October 2026 · Last updated: 26 October 2026

SEGY/SEGD Explorer is a free viewer for seismic data files on iOS and Android. It works entirely on your device. The application does not collect personal information or transmit your seismic files to our servers.

1. Who is responsible

Application: SEGY/SEGD Explorer (iOS bundle identifier com.seismicprocessing.segysegdexplorer; Android package com.seisstudy.segyviewer)
Developer and data controller: Artur Avtukhov, sole proprietor (impresa individuale) registered in Italy, Partita IVA 01886020096
Privacy contact: seismicprocess@gmail.com
Registered address: Via Dante Di Nanni 116, 10141 Torino (TO), Italy (full identification on the Business details page)

2. What the application does with your data

We reviewed the application's source code and every library it includes. The application:

contains no analytics, crash-reporting, advertising or tracking software development kits;
does not read device identifiers (advertising ID, vendor ID, serial numbers) and does not request access to the camera, microphone, location, contacts or photo library;
makes no network requests to our servers or to third parties: it has no remote API, no cloud storage, no accounts and no authentication;
includes only the Capacitor runtime (which embeds the app's web interface) and open-source rendering libraries (React, three.js, lucide icons); none of them sends data anywhere.

The only outbound links are the ones you tap yourself in the app footer (the developer's LinkedIn profile and this website), which open in your browser.

3. Your seismic files

You choose a file through the system file picker. The application reads it directly from your device, in the app's own process, to display sections, trace headers, spectra and 3D cubes. Specifically:

Files are opened and inspected locally; they are never uploaded to the developer or to any third party.
There is no cloud processing and no cloud file storage.
Large SEG-Y and SEG-D files are read in parts directly from the selected file; other files are held in the app's memory while open (up to 300 MiB). The application does not create copies, temporary files or caches of your files on the device: when you close the file or the app, nothing of it remains in the app's storage.
If you edit a SEG-Y textual header and save it, the change is written only where you choose: into the opened file on Android, or as a corrected copy that your browser downloads when the app runs as a web page. No copy is sent to us.

4. Accounts and payments

No account registration and no login are required or offered. The application is free. It has no subscriptions, no in-app purchases and no payment processing.

5. Data sharing

Because the application collects no data and makes no network requests, no data is shared with, sold to or transmitted to third parties. Apple and Google may collect their own installation and crash statistics through the App Store and Google Play under their own privacy policies; the developer receives at most aggregated, non-identifying figures from those stores.

6. Data stored on your device, retention and deletion

The application remembers only your display preferences on the device (for example the palette, gain, AGC window, trace page size and header byte positions), in the app's local storage under keys starting with segyViewer.v1.. These values contain no personal information and never leave the device.

To remove them, delete the application (iOS, Android) or clear the app's data in the system settings (Android). When the app runs as a web page, clear the site data in your browser.
No data is retained remotely: there is nothing to delete on our side.
No legal retention obligation applies, since no personal data is processed by the developer.

7. Your rights

If you are in the European Economic Area, the General Data Protection Regulation (GDPR) gives you rights of access, rectification, erasure, restriction, portability and objection, and the right to lodge a complaint with a supervisory authority (in Italy, the Garante per la protezione dei dati personali). As the application does not process your personal data, there is normally nothing for us to provide or delete, but you can send any privacy question or request to seismicprocess@gmail.com; we answer within one month. If you email us, we use your address only to reply.

8. Children

The application is a technical tool for geophysicists, field crews and students and is not directed at children. It collects no personal information from anyone, including children. The age rating shown in the app stores is determined by the stores' own questionnaires.

9. Changes to this policy

Updates are published on this page, at seismic-processing.com/explorer/privacy.html, with a new "last updated" date. If a future version of the application starts to process personal data, this policy and the App Store privacy details will be updated before that version is released.

Related: Support · Terms of Use · About SEGY/SEGD Explorer. This policy covers the mobile application only; the seismic-processing.com learning platform has its own Legal & Privacy documents.