AppFactory Studio

Privacy Policy

Feel First: HRV vs How I Feel

Effective: October 2026 · 한국어

1. Information We Collect

No account. There is no sign-up, no login and no account of any kind.

Your daily check-ins (how you feel, 1–5), tags, notes and any sleep time you type in yourself stay on your device. The app contains no advertising.

No advertising identifier (GAID) is requested or used. No ad SDK is present.
No third-party analytics or crash-reporting SDK is present in the app.
Anonymous usage events only. The app sends a fixed, minimal set of anonymous events to our server (first launch, first successful use, whether the plan screen was shown and from which screen, purchase started / completed / cancelled / failed, restore, and a "still installed" ping on day 1 and day 7). Each event carries only an install identifier the app generates at random, an app tag, the event name and a timestamp, plus — for these two events only — a short label: which screen opened the plan screen, or a generic error category when a purchase fails. It never contains your feelings, tags, notes, any health data, e-mail, device identifiers or advertising ID. Raw events are kept for up to 90 days, then only aggregate counts remain.

2. Health Connect Data

If you choose Connect a watch, the app asks Android Health Connect for read-only access to three data types. You can allow any of them, none of them, or revoke them at any time in Health Connect.

Data type	Why the app reads it	Stored
Sleep sessions (duration and awake stages)	Showing last night's sleep next to the feeling you chose, compared with your own usual range	On your device
Resting heart rate	Comparing today's value with your own baseline	On your device
Heart rate variability (RMSSD)	Observing whether it moves with how you feel	On your device
Past data (older than 30 days, optional)	Building your personal baseline on the first day instead of after weeks	On your device

The app never writes to Health Connect and never reads in the background — only while the app is open.
Health Connect data is used only to show you these comparisons inside the app. It is not sent to our server, not shared with or sold to anyone, not used for advertising, and not used to determine credit-worthiness or for lending purposes. No human reads it.
Values read from Health Connect are cached in the app's private storage and are excluded from Android cloud backup and device-to-device transfer. JSON and CSV exports contain your journal only, never Health Connect values.
Disconnect in Settings revokes the app's Health Connect access and deletes every cached value immediately.
The use of information received from Health Connect adheres to the Health Connect Permissions policy, including the Limited Use requirements.

Not a medical device. The app shows personal observations and correlations, not diagnosis, treatment or prediction.

3. Where Your Data Lives

Data	Purpose	Stored
Check-ins, first feeling, tags, notes, manually entered sleep	Your journal, today's reveal, history, calibration report	On your device
Health Connect values (section 2)	Comparisons with your baseline	On your device (excluded from backup)
Reminder and app settings	The morning reminder and how the app looks	On your device
Feel First Pro entitlement	Unlocking what you bought and restoring it	On your device (verified with Google Play)
Anonymous usage events (random install identifier only)	Seeing where people drop off	Our server — raw events for up to 90 days, then aggregates only

Notifications. The optional morning reminder is a local notification scheduled on your device. It never contains any health value. The app asks for notification permission only when you turn the reminder on. No push service is used.

Backup. Android's built-in app backup may copy your journal (not Health Connect values) to your own Google account backup if you have that enabled; that is governed by Google. You can also export your journal as a JSON or CSV (Pro) file — it goes only where you send it.

4. Third-Party Services

The app contains no advertising or analytics SDK. Third-party components are Google Play Billing (purchases) and Android Health Connect (only if you connect it, read-only, on your device).

In-app purchases and subscriptions — processed entirely by Google through your Google Account. We never see your payment details. Subscriptions are managed and cancelled in Google Play.

Google's handling of that data is governed by the Google Privacy Policy.

5. Overseas Transfer of Personal Data

We transfer no personal data abroad. The anonymous usage events in section 1 are received on Cloudflare infrastructure (which may be located abroad) and contain no personal or health data.

6. Advertising and Tracking

No ads. The app displays no advertising of any kind.
No tracking. Nothing about you is tracked across apps or websites. No advertising ID is read.

7. Age

This app is intended for adults (18+) and is not directed at children.

8. Your Rights

Health data — tap Disconnect in Settings, or revoke access in Health Connect, and cached values are deleted.
Journal — delete any entry in History; deleting the app removes all local data. Files you exported yourself remain where you saved them. Anonymous usage events cannot be linked back to you and are discarded after 90 days.
Questions or requests — email us at the address below.

9. Contact

Email: leehywo@gmail.com

Data Protection Officer: AppFactory Studio Privacy Team | Contact: leehywo@gmail.com

10. Changelog

Date	Change
2026-10	First version.