QuitDay Privacy Policy
# Privacy Policy — QuitDay
_Last updated: 2026-06-16_
QuitDay ("the app") is developed by SiU Ahn ("we", "us"). This policy explains
what information the app handles and how. By using the app, you agree to this
policy.
## 1. Information we collect
**Data you enter stays on your device.**
All of your records — quit start dates, prices, daily amounts, streak history,
cravings-resisted counts, and settings — are stored only locally on your device.
We do not operate any server and we never receive, transmit, or store this data.
**We do not collect personal information.**
The app has no sign-up, no login, and no account. We do not collect your name,
email, phone number, or precise location.
## 2. Advertising
The app uses **Google AdMob** to show ads. To serve ads, Google and its partners
may collect and process certain data, including:
- Advertising identifiers (e.g., Android Advertising ID)
- Device information (model, OS version, language)
- App interaction and ad interaction data
This data may be used for ad personalization and measurement. On supported
devices you may be shown a consent form (UMP) and can manage personalized-ads
preferences. You can also reset or limit ad tracking in your device settings.
Learn more in Google's Privacy Policy: https://policies.google.com/privacy
How Google uses data: https://policies.google.com/technologies/partner-sites
## 3. Notifications
With your permission, the app schedules local reminder notifications on your
device. These are generated on-device and are not sent through any server.
## 4. Permissions
- **Notifications / exact alarms** — to deliver daily reminder notifications.
## 5. Children
The app is not directed at children under 13 and we do not knowingly collect
information from children.
## 6. Data retention and deletion
Because your data is stored only on your device, you can delete it at any time by
removing items in the app or uninstalling the app. Uninstalling removes all
locally stored data.
## 7. Changes
We may update this policy. Material changes will be reflected on this page with a
new "Last updated" date.
## 8. Contact
Questions? Contact us at **siwooeo@gmail.com**.
_Last updated: 2026-06-16_
QuitDay ("the app") is developed by SiU Ahn ("we", "us"). This policy explains
what information the app handles and how. By using the app, you agree to this
policy.
## 1. Information we collect
**Data you enter stays on your device.**
All of your records — quit start dates, prices, daily amounts, streak history,
cravings-resisted counts, and settings — are stored only locally on your device.
We do not operate any server and we never receive, transmit, or store this data.
**We do not collect personal information.**
The app has no sign-up, no login, and no account. We do not collect your name,
email, phone number, or precise location.
## 2. Advertising
The app uses **Google AdMob** to show ads. To serve ads, Google and its partners
may collect and process certain data, including:
- Advertising identifiers (e.g., Android Advertising ID)
- Device information (model, OS version, language)
- App interaction and ad interaction data
This data may be used for ad personalization and measurement. On supported
devices you may be shown a consent form (UMP) and can manage personalized-ads
preferences. You can also reset or limit ad tracking in your device settings.
Learn more in Google's Privacy Policy: https://policies.google.com/privacy
How Google uses data: https://policies.google.com/technologies/partner-sites
## 3. Notifications
With your permission, the app schedules local reminder notifications on your
device. These are generated on-device and are not sent through any server.
## 4. Permissions
- **Notifications / exact alarms** — to deliver daily reminder notifications.
## 5. Children
The app is not directed at children under 13 and we do not knowingly collect
information from children.
## 6. Data retention and deletion
Because your data is stored only on your device, you can delete it at any time by
removing items in the app or uninstalling the app. Uninstalling removes all
locally stored data.
## 7. Changes
We may update this policy. Material changes will be reflected on this page with a
new "Last updated" date.
## 8. Contact
Questions? Contact us at **siwooeo@gmail.com**.