At a glance
- No account. No sign-in. No personal profile.
- App settings and history stay on your device.
- Location is only used locally to compute sunset time. It is never uploaded.
- The app shows ads via Google AdMob, which has its own privacy policy.
Who we are
Liora — Blue Light Filter (the "app") is published by Prakash Makwana ("we", "us", "our"). The app's package identifier on Google Play is com.Liora.Blue.Light.Filter. Contact: prakash27202@gmail.com.
This privacy policy applies to the Android app and to this documentation site. Last updated May 17, 2026.
What the app stores on your device
The following data is stored locally in app preferences and a Room database. None of it is transmitted to us or to any third party.
- Filter settings — color temperature, intensity, dimming, scheduled times, and the on/off state of the filter.
- Saved profiles — names and parameters of filter presets you create.
- Usage history — timestamps of when the filter was on or off so you can review your own usage on the statistics screen.
- App exclusions — package names of apps you choose to exclude from the filter.
- Last known location — only if you opt into the sunset-to-sunrise schedule. Used to compute sunrise and sunset locally.
You can erase all of this at any time by clearing app data in Android Settings → Apps → Liora → Storage → Clear data, or by uninstalling the app.
Permissions and why we ask for them
| Permission | Why |
|---|---|
SYSTEM_ALERT_WINDOW | Draws the warm filter overlay above other apps. This is the core of the product. |
| Accessibility service | Keeps the filter visible on system surfaces such as notifications, the app drawer, and lock screens. The service does not read screen content; it is only used to keep the overlay aligned. |
FOREGROUND_SERVICE / FOREGROUND_SERVICE_SPECIAL_USE | Required by Android so the overlay can stay on while you switch apps. |
POST_NOTIFICATIONS | Shows a small ongoing notification while the filter is active so you can turn it off quickly. |
SCHEDULE_EXACT_ALARM | Triggers the filter at exactly the scheduled times you set. |
RECEIVE_BOOT_COMPLETED | Restores your scheduled filter after a reboot, only if you have a schedule enabled. |
ACCESS_COARSE_LOCATION / ACCESS_FINE_LOCATION | Optional. Used only when you enable the sunset-to-sunrise schedule, and only on your device. |
INTERNET / ACCESS_NETWORK_STATE | Used to load advertising from Google AdMob. |
Advertising
The app displays advertising through Google AdMob to support free distribution. AdMob may collect data such as a device advertising identifier, IP address, and limited interaction data in order to serve and measure ads. This data is collected directly by Google, not by us.
You can read Google's policy at Google's Partner sites and Privacy & Terms, and you can reset or limit the advertising identifier in Android Settings → Privacy → Ads.
If applicable laws (such as GDPR or CCPA) apply to you, AdMob displays a consent prompt the first time the app shows an ad. Your choice is stored on the device.
Crash and analytics data
The app does not include any first-party analytics, telemetry, or crash reporting service. We do not know that you have installed the app, opened it, or used any specific feature.
Children
Liora is not directed at children under 13. The app does not knowingly collect personal information from children. AdMob is configured with family-safe content settings; if you believe a child has used the app and you would like to ensure their advertising identifier is reset, see Google's instructions linked above.
Your choices
- Stop the filter. Toggle the power button on the home screen, use the Quick Settings tile, or revoke either permission in Android Settings.
- Delete your data. Clear app data, or uninstall the app.
- Limit advertising. Reset or opt out of personalized advertising in Android Settings → Privacy → Ads.
Changes to this policy
If we materially change how the app handles data, we will update this page and bump the "Last updated" date. Significant changes (for example, adding a new third-party SDK that processes data) will be highlighted in a release note in the app store listing.
Contact
Questions, complaints, or data requests? Email prakash27202@gmail.com. We reply within 14 days.