This app records user-entered coffee roasting activity. It does not control roasting equipment, determine safe operation, or replace manufacturer instructions. Timers and notifications are not safety devices.
1. Our approach
Dustline Apps (“we,” “us,” or the “developer”) limits the information handled by RoastTrace: Coffee Roast Log (“the app”) to what its features need. Records you enter are generally stored locally on your device. No account is required.
2. Information handled by the app
- Roaster, green-bean lot, inventory, purchase, roast-session, elapsed-time, temperature, roast-event, and weight records you enter
- Aroma, acidity, sweetness, bitterness, body, rating, and cupping notes you enter
- Photos you add, notifications you explicitly enable, and JSON backups, PDF reports, or CSV files you create
These records stay on your device and are not sent to a server operated by the developer.
3. Third-party services
The app does not use an advertising SDK, third-party analytics SDK, or developer-operated cloud service.
The optional lifetime Premium purchase is processed by Google Play Billing. Google processes payment information; the app and developer do not receive your complete payment details.
4. Sharing and export
Only when you start an export or share action does selected information pass through the operating system's share interface to a destination you choose. The destination's own policy governs its copy.
5. Retention and deletion
Local data remains until you delete it in the app or uninstall the app. You must separately delete exported files or copies held by a sharing destination. Google's retention policies apply to purchase data it processes.
6. Children's privacy
The app is not directed to children under 13, and the developer does not knowingly collect personal information from children under 13.
7. Security
The app is designed around local storage, and third-party service connections use encryption in transit. No electronic storage or transmission method can be guaranteed completely secure.
8. Changes to this policy
We may update this policy when features, law, or third-party services change. Material changes will be indicated by updating the date on this page.
9. Contact
For privacy or app questions, email support@dustline.jp.