In short: Petronaut works entirely offline. It does not collect, transmit, or share any personal data. Everything you enter (calculations, history, settings) stays only on your device.
This Privacy Policy explains how the Petronaut mobile application ("Petronaut", "the app", "we", "us") handles information. By using the app, you agree to the practices described below. Petronaut is developed and operated by the owner of the onws.net domain.
Petronaut is designed as a fully offline tool. We do not collect any personal information. Specifically, the app does not request, gather, or transmit:
The app does not require you to create an account or sign in.
To provide its features, Petronaut stores certain information only on your device, never on any server:
This data is kept in the app's local storage (an on-device database and local settings). It is not accessible to us or to any third party. You can delete it at any time by clearing your history within the app or by uninstalling the app.
Petronaut is built to function without an internet connection. All calculators, the well control simulator, the formula reference, and the unit converter run locally. The app does not send your data over the internet.
Petronaut lets you export or share calculation and simulator results (for example as a printed report or through your device's share sheet). When you choose to share, you are in full control: the content is handled by the app or service you select (such as your printer, email, or messaging app). Petronaut does not transmit this data on its own.
Petronaut does not integrate advertising networks, analytics providers, or third-party tracking SDKs. If the app is distributed through the Google Play Store, Google may collect limited technical information (such as download and crash data) in accordance with Google's own Privacy Policy. This collection is governed by Google, not by us.
Petronaut is a professional engineering tool intended for adults and students in the petroleum field. It is not directed at children under 13, and we do not knowingly collect any information from children.
Because Petronaut does not collect or transmit personal data, there is no personal information held by us that could be exposed. Data stored locally on your device is protected by your device's own security measures. We recommend keeping your device secured with a passcode or biometric lock.
You remain in full control of any data stored by the app:
The Well Control Simulator and the calculators are provided for educational, training, and reference purposes. They are not certified field-grade instruments and should not be used as the sole basis for operational or safety-critical decisions. Always verify results against official procedures and qualified engineering judgment.
We may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date at the top of this page. Continued use of the app after changes take effect constitutes acceptance of the revised policy.
If you have any questions about this Privacy Policy or how the app handles data, please contact us: