1. Information Stored on Your Device
HydroFast is local-first. The tracking and profile information you enter is stored on your device so the app runs offline, and it is not uploaded to HydroFast servers. Depending on the features you use, this can include:
- Hydration entries, water intake history, and your daily hydration goal
- Fasting plans, fasting sessions, and fasting history
- Profile information used by the app, such as the name you enter, optional gender, weight, wake and sleep times, and your fasting experience or preference
- Streaks and achievements
- Reminder settings, schedules, and reminder state
- App settings such as theme preference and the ml/oz unit preference
- Other local application settings used to run the app
HydroFast currently does not require account creation and does not collect account or contact profile data for core app use. Contact information is collected only when you choose to submit it through Help and Support.
2. Help and Support Requests
Using Help and Support is voluntary. HydroFast does not send this information during ordinary tracking use. It is transmitted only when you choose to submit a support request, feature suggestion, bug report, general feedback, or another inquiry.
When you submit a request, the app may transmit over HTTPS:
- Your email address, which is required so we can respond
- Your name, if you choose to provide it
- The support category, subject, and message you enter
- One optional screenshot or image that you select
- The app version
- Your Android version
- Your device model
- Your locale or language-region setting
- A randomly generated installation identifier
Optional attachments may be JPEG, PNG, or WebP images. HydroFast does not automatically take screenshots. You choose whether to attach an image, and the image may contain any information visible in the screenshot you select.
The installation identifier is generated randomly, stored on your device, and reused for future support submissions so requests can be managed and abuse and unreasonable request volumes can be limited, as currently implemented. It is not an advertising identifier, IMEI, or device serial number, and it is not intended to identify you directly.
3. Reports and PDF Export
HydroFast can generate reports from the activity already stored on your device. The available reports are:
- Complete Wellness report
- Hydration report
- Fasting report
Report calculations and PDF generation happen on your device. A generated report is not automatically uploaded to HydroFast servers.
- Previewing a report keeps it on your device and does not upload it.
- Saving a PDF stores the file through the device storage or file location you select.
- Sharing a PDF is started by you, through Android's native share functionality. HydroFast does not send a report anywhere on its own.
- Once you intentionally share a PDF with another app or service, that destination handles the file under its own privacy practices, which are outside our control.
A report can contain personal hydration and fasting activity, so review it before sharing it and choose the destination deliberately.
4. How We Use Information
The locally stored data is used to:
- Provide fasting tracking and schedule support
- Provide hydration tracking and water intake records
- Trigger reminders based on your settings
- Show progress insights and history inside the app
- Generate reports and PDF exports on your device when you request one
- Keep your app experience personalized to your preferences
Information submitted through Help and Support may be used to:
- Respond to questions and provide customer support
- Investigate reported bugs and troubleshoot technical issues
- Review feature suggestions and understand user feedback
- Improve HydroFast
- Prevent spam or abuse and enforce reasonable support-request limits
5. Notifications
HydroFast uses local notifications scheduled on your device for fasting and hydration reminders.
HydroFast currently does not use remote push notifications and does not use Expo push tokens.
You can disable notifications from HydroFast settings and/or your device notification settings.
6. Data Storage
HydroFast stores app data on your device for offline functionality and normal app operation.
In the current version, hydration logs, fasting records, your daily goal, profile details, streaks and achievements, reminders, and app settings such as theme and units are kept on your device. Reports are generated from that same local data, and any PDF you save is written to the location you choose on your device.
This local-first behavior applies to normal app, tracking, and report data. When you voluntarily use Help and Support, the information you submit and the limited technical information described above are sent over HTTPS to our support service so we can review and respond to your request.
Support-submission information may be stored as needed to handle the request, troubleshoot issues, prevent abuse, and maintain necessary support records.
7. Third Party Services
| Service type | Current status |
|---|
| Analytics provider | None (not currently used) |
| Crash reporting provider | None (not currently used) |
| Remote push notifications | None |
| Notification type | Notifications scheduled on the device only |
| Cloud sync or account backend | None (HydroFast does not require or create accounts) |
| Report generation and PDF export | Performed on the device |
| Saving or sharing a PDF | Handled by Android's own file and share functionality, started by you. This is an operating system feature, not a HydroFast analytics or cloud service. |
| App distribution/platform services | Google Play Store |
If these integrations change in a future release, this Privacy Policy will be updated.
Information submitted through Help and Support may be processed by service providers needed to operate, host, deliver, secure, or maintain the support service. We do not use support messages, names, email addresses, or screenshots for advertising.
8. Data Sharing
HydroFast does not sell personal data.
Normal tracking and report data
Hydration logs, fasting records, profile details, app settings, and the reports generated from them remain on your device. They are not automatically shared with HydroFast and are not shared with third parties in the current version, except where disclosure is required by law or needed to protect rights, safety, or security.
Support requests
Information you submit through Help and Support is sent to HydroFast's support service. It may be processed by infrastructure and service providers acting on our behalf to operate, host, secure, or maintain that service. Those providers apply their own privacy and security practices, which are separate from ours. Support information may be retained as reasonably necessary to handle the request, troubleshoot issues, prevent abuse, and meet applicable obligations, and it may be disclosed where required by law or needed to protect rights, safety, or security.
PDF reports you share
A PDF report is shared only when you start the share yourself. It goes to the destination you select through the operating system sharing flow, and that destination handles it under its own privacy practices, which are separate from ours and outside our control.
9. Data Retention
HydroFast stores data on your device until you remove it. This includes hydration logs, fasting records, profile details, streaks and achievements, reminder preferences, and app settings such as theme and units.
There is no fixed server-side retention period for this locally stored data in the current version because the data remains on your device unless you delete it. A PDF you saved or shared is an ordinary file and stays wherever you put it until you remove it.
You can remove locally stored data by:
- Using the "Reset All Data" option inside HydroFast
- Clearing app storage from your device settings
- Uninstalling the app
Information submitted through Help and Support may be retained for as long as reasonably necessary to respond to the request, investigate issues, prevent abuse, comply with applicable obligations, and maintain necessary support records.
10. How to Delete Your Data
You can delete locally stored data in any of these ways:
- Inside HydroFast: Open Settings, choose Reset All Data, then confirm
- Device settings: Clear HydroFast app storage from Android settings
- Remove app: Uninstall HydroFast
Deletion of locally stored app data is permanent and cannot be undone after confirmation.
These options remove locally stored HydroFast data from your device. They do not automatically delete support requests that were already submitted to the server, and they do not remove a PDF report you saved elsewhere or already shared. To request deletion of support information associated with you, email support@syedshahbazhussain.com.
Step-by-step instructions, including what to include in a deletion request, are on the HydroFast data deletion request page.
11. User Choices and Controls
You can manage your data and preferences at any time:
- Open HydroFast
- Go to Settings
- Tap "Reset All Data"
- Confirm the action
- Disable reminders in app settings and/or device settings
- Adjust app preferences such as fasting plans and hydration reminders
- Choose whether to generate, save, or share a report, and review it before sharing
- Clear app storage from your device settings
- Uninstall the app to remove locally stored data from the device
- Contact us to request deletion of information previously submitted to support
12. Security
Support requests are transmitted using HTTPS. We use reasonable technical and organizational measures intended to protect app data and information submitted through Help and Support. However, no method of electronic transmission or storage can be guaranteed to be completely secure.
13. Children's Privacy
HydroFast is not intended for children under 13 years of age. If you believe a child has provided personal information, please contact us so we can review and take appropriate action.
14. International Users
If you use the app from outside your home country, local data handling may still be subject to local laws and device platform behavior in your region.
15. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. The latest version will be posted on this page with an updated "Last Updated" date.
16. Contact Us
If you have privacy questions about HydroFast, contact us at:
Email: support@syedshahbazhussain.com
Website: https://hydrofast.syedshahbazhussain.com
