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Privacy Policy for My Terminal

Last Updated: June 20, 2026

At My Terminal (referred to as "the App"), we are committed to protecting the privacy and security of our users. This Privacy Policy explains how we collect, use, and safeguard information when you use our mobile application, which integrates with custom ESP32 hardware to conduct railway rolling stock diagnostics.

1. Information We Collect

A. Personal Information (Technician Credentials)

• What We Collect: When you register or log in as an authorized technician, we collect your email address and password.

• Why We Collect It: This information is processed securely through Firebase Authentication to verify your identity and authorize your access to upload and modify rolling stock audit logs on our cloud database.

• Guest Mode: If you use the App in Guest Mode, no registration or personal identification information is collected.

B. Diagnostic & Rolling Stock Data

• What We Collect: Equipment measurements, including Supply Air (SA), Return Air (RA), Fresh Air (FA), and Humidity (HG) telemetry, alongside Rake IDs, Coach numbers, Unit designations, and inspection timestamps.

• Why We Collect It: This data is captured to maintain safety logs and historical records of rolling stock inspections.

• How It is Stored: Offline data is stored temporarily on your device's local cache or on the ESP32 hardware backlog. Once synchronized, it is securely uploaded to our cloud server powered by Firebase Firestore.

C. Device Permissions

To function correctly, the App requires access to the following system-level capabilities:

• Bluetooth Permissions (BLUETOOTH_SCAN, BLUETOOTH_CONNECT): Required to scan for, pair with, and receive diagnostic serial data from your custom ESP32 workstation.

• Location Permission (ACCESS_FINE_LOCATION): Required by the Android operating system to perform Bluetooth scanning (specifically BLE and Classic SPP discoveries). Please Note: The App does not track, save, share, or upload your physical location or GPS coordinates.

2. Third-Party Services

We utilize trusted third-party infrastructure to power our cloud features. These services handle data in accordance with their own strict privacy frameworks:

• Google Play Services: Used for app distribution, updates, and integrity checks.

• Firebase Authentication & Firestore (Google LLC): Used to securely authenticate authorized technicians and persist rolling stock inspection logs in the cloud. You can read the Google Privacy Policy here: https://policies.google.com/privacy.

3. Data Retention and Erasure

• Authentication Data: Your login credentials remain active until your account is deleted.

• Local Workspace Data: You can wipe temporary workspace data instantly at any time using the "Clear Workspace" function.

• Cloud Archives: Authorized technicians can permanently delete specific inspection records from the cloud database via the "Inspection Archives" screen.

• Account Deletion: To request the permanent deletion of your technician profile and associated credentials, please contact us at the support address listed below.

4. Security of Your Data

We employ commercial-grade security measures to safeguard your personal credentials and diagnostic data. All transmissions to Firebase servers are encrypted using Secure Sockets Layer (SSL/TLS) technology. However, please remember that no method of transmission over the internet or mobile wireless network is 100% secure.

5. Children's Privacy

The App is designed strictly for adult industrial technicians and rolling stock maintenance operators. It does not address anyone under the age of 13, and we do not knowingly collect personal information from children.

6. Changes to This Privacy Policy

We may update our Privacy Policy from time to time to align with system upgrades or changing regulatory requirements. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last Updated" date at the top.

7. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or your data, please contact our support team:

• Email: developerarzoo.help@gmail.com

• Organization: Ilmora