1. Introduction
TPASS.calc (hereinafter referred to as "the Application") is developed by Cheng Ruei Hsu (hereinafter referred to as "we" or "us"). We are deeply committed to protecting your privacy and data security. This Privacy Policy explains how the Application handles your data and your privacy rights.
2. Core Data Storage and Collection Methods
The Application adopts a "Local-First" architecture. We do not collect, store, or process your personally identifiable information on any external servers:
- Local Storage: All trip records, favorite routes, TPASS cycle settings, and user preferences you create within the app are stored exclusively on your personal device (via SwiftData and UserDefaults).
- NFC and Web Import: All reading, parsing, and filtering operations for NFC card scanning and official website data import are performed locally on your device. We do not upload your card numbers, verification codes, or transaction details to any third-party servers.
3. Voice Recognition and Anonymous Data Analytics
To provide the "Voice Quick Record" feature and continuously improve our semantic parsing engine, we operate with the highest privacy standards:
- Permission Requests: This feature requires your "Microphone" and "Speech Recognition" permissions to function. Your voice audio is processed by Apple's native speech recognition technology (SFSpeechRecognizer).
- Anonymous Model Learning: To help our voice assistant better understand Taiwan-specific transportation terminology, when the system's parsing is incorrect and you manually correct it, the Application uploads the "original transcription text" and "your corrected field results" in a completely anonymized manner to our analytics database.
- Zero Personally Identifiable Information (No PII): This collection process is automatically filtered to remove all sensitive information (such as Apple ID, device ID, name, or email). This telemetry data is only used to train and improve our natural language processing (NLP) model and can never be traced back to you personally.
4. Cloud Backup and Third-Party Services
The Application does not use any third-party authentication services that require account registration (no login mechanism). We only provide backup services supported by Apple's native platform:
- Apple iCloud (CloudKit): If you choose to enable cloud backup, your data will be encrypted and synchronized to your personal iCloud Private Database. We (the developer) have absolutely no ability to access, read, or modify any data stored in your personal iCloud space.
5. Purposes of Data Use
All your trip and operation records are used exclusively for functionality within the Application, including:
- Calculating the actual payment and discount amounts for TPASS plans.
- Generating personal commute data dashboards (monthly pass ROI, route rankings, etc.).
- Providing daily reminders and periodic push notifications (all triggered and sent locally on your device).
We will never sell, rent, or share your data with any third party for commercial or marketing purposes.
6. Data Security
To protect your privacy, we implement the following security measures:
- Local Encryption: All data stored locally on your device is protected by iOS's built-in encryption mechanisms.
- Transmission Encryption: When data is synchronized to iCloud, it is protected using TLS/SSL encryption protocols to ensure transmission security.
- Anonymization Processing: All data uploaded to our analytics database undergoes multiple layers of anonymization to ensure it cannot be linked to individuals.
7. Data Deletion and User Control
You have complete control over your data. Since all your data is stored on your personal device or private iCloud account, you can manage it anytime within the Application:
- Clear Local Data: You can delete all trip records and settings stored locally by using the one-click clear option in the app's Settings page.
- Delete Cloud Backup: You can directly delete your CloudKit backup data stored in your iCloud space through the app's Settings page.
- Export Data: You can export your data as a CSV file anytime for offline backup or cross-device migration purposes.
- Access Your Data: You can view all personal data stored in the application at any time.
8. Cookies and Tracking
The Application does not use cookies or any similar tracking mechanisms. We do not use third-party tracking tools, advertising technologies, or analytics platforms (such as Google Analytics) to monitor your behavior.
9. Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect legal changes or updates to our practices. Any significant changes will be notified through the Application or announced on our official website. Your continued use of the Application signifies your acceptance of the updated Privacy Policy.
10. Contact Us
If you have any questions or suggestions regarding this Privacy Policy, please feel free to contact us:
📧 Email: tpass.calc@gmail.com