Privacy Policy

This Privacy Policy explains what information the Steel Table India Android app ("the App"), published by Trishunya Infotech ("we", "us"), collects, how it is used, and the choices you have. The App is a reference tool for Indian structural steel section data and is designed to need as little data as possible.

1. Information we do not collect

The App does not collect or require: your name, email address, phone number, physical address, government ID, financial or payment information, photos, contacts, SMS messages, call logs, or precise location.

2. Information stored only on your device

Any sections you bookmark or favourite, recent searches, calculator inputs, and app preferences are stored locally in the App using Android's standard app storage. This data is never transmitted to us and is deleted when you uninstall the App or clear its storage.

3. Information collected automatically

3.1 Analytics

We use Google Analytics to understand, in aggregate, how the App is used - which section families and features are opened, how often, and on what type of device - so we can prioritise fixes and improvements. Analytics data is associated with an app-instance identifier, not with your name or contact details. You can switch analytics off at any time from the App's menu under Privacy choices.

3.2 Advertising

The App shows ads through Google AdMob to keep it free. AdMob may collect device and advertising identifiers (such as your Android Advertising ID), approximate location derived from IP address, and engagement data with ads, in order to serve and measure ads. This processing is governed by Google's Privacy Policy.

You can limit ad personalisation at any time from your device: Android Settings → Google → Ads → Delete advertising ID / Opt out of Ads Personalisation.

3.3 Install measurement (Meta SDK)

The App includes the Meta (Facebook) SDK for Android. It reports app install and app-open events, app version, device and OS information, and your device's Android Advertising ID (if you have not reset or opted out of it) to Meta. We use this only to measure which Meta advertising campaigns lead to installs of Steel Table India, and to improve our own advertising. The App does not use Facebook login, and the Meta SDK never receives the sections you look up, your calculator inputs, or your saved data. We also use the Google Play Install Referrer API, read by the Meta SDK, to learn which ad or link an install came from.

Where the law requires your consent before this data is collected (for example in the EU/EEA, the United Kingdom or Switzerland), the App asks for it first, and you can change your choice later in the App's privacy settings. You can also reset or delete your Android Advertising ID at any time. Data received by Meta is processed under Meta's Privacy Policy. We do not sell your personal information.

4. Permissions the App requests, and why

The App does not request access to Bluetooth, camera, microphone, contacts, storage beyond its own data, or location.

5. Third-party service providers

We share limited, non-identifying technical data with:

• Google Analytics for Firebase - usage analytics.
• Google AdMob - advertising.
• Meta (Facebook) - app install/open events, device and app information, and the Android Advertising ID, used for advertising install-attribution.

These providers may process data outside your country of residence, under their own privacy policies.

6. Accuracy of reference data

Section dimensions and properties in the App are transcribed from the published IS 808:2021 tables - publicly available information issued by the Bureau of Indian Standards (BIS) - for informational and reference purposes only. We take no responsibility for the accuracy of this data; this is a data-accuracy matter, not a privacy one - see our Terms of Use for the full disclaimer on relying on this data.

7. Data retention and deletion

On-device data is deleted the moment you uninstall the App or clear its storage. Analytics, advertising and attribution data are retained by Google and Meta according to their own retention policies; you can reset your Advertising ID at any time from Android Settings, which breaks the link to any previously collected advertising data.

8. Children's privacy

The App is not directed at children under 13 and we do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us and we will address it.

9. Security

We do not operate a server that stores your personal data, which limits our exposure to data breaches affecting you directly.

10. Changes to this policy

We may update this Privacy Policy from time to time. Material changes will be reflected by updating the "Last updated" date above. Continued use of the App after changes take effect constitutes acceptance of the revised policy.

11. Contact us

Questions about this policy or your data can be sent to infotech.trishunya+support@gmail.com.