Lumtap Privacy Policy
Effective date: 2026-11-06
Lumtap ("the app") is a free flashlight app provided by DDJ B1 ("we", "us"). It lets you turn your phone's flashlight on and off from a button on your lock screen, a Quick Settings tile, a home screen widget, by shaking the phone, or inside the app. It has no account system, no login, no subscription and no server operated by us.
Your data
Your settings (for example the auto-off timer, brightness level, shake sensitivity and which shortcuts are on) and a simple count of how many times you turned the light on in the last 7 days are stored locally on your device.
- The app itself does not upload this data, and we never receive it.
- The advertising SDK described below may collect information as explained in that section. Your settings and usage counts are not passed to the advertising SDK.
- If you use "Share", a short text goes only to the app you choose through Android's share sheet.
- Android's standard app backup may include app data in your own Google account backup if you have device backup enabled; that backup is controlled by you and Google, not by us.
Permissions and sensors
- Flashlight — Lumtap switches the camera flash on and off as a light. It does not request the camera permission and never takes photos or video.
- Notifications — to show the silent "Turn on" button on your lock screen and in the notification shade, and occasional optional tips. You can decline or turn them off; the in-app button, tile and shake still work.
- Foreground service — keeps the light on while you use it (including the auto-off timer) and, only if you turn on "Shake to light", listens for the shake gesture.
- Motion and proximity sensors — used only when you turn on "Shake to light", to detect a shake and to ignore shakes while the phone is in a pocket. Sensor readings are processed on your device in real time; the app itself does not store them or send them off the device.
- Keep awake (wake lock) — used only if you turn on "Work with the screen off" for shaking.
- Vibration — a short buzz when the light switches, if enabled.
- Run at startup — to restore the lock screen button and shake detection after the phone restarts.
- Internet / network state / advertising ID — used by the advertising SDK described below.
Lumtap does not request location, contacts, camera, microphone, phone call, SMS, calendar or photo library permissions.
Advertising and information collected automatically
The app displays advertisements provided by Google AdMob inside the app only (never on the lock screen button, the Quick Settings tile or the widget). Ads are limited to content rated for general audiences. To serve and measure ads and to prevent fraud, the AdMob SDK may collect and share with Google information such as your device's advertising identifier and other device identifiers, approximate location derived from your IP address, app interactions (for example ad views and taps), crash logs and diagnostics. This data is shared with Google as a third party for advertising, analytics and fraud prevention purposes. For more information see https://policies.google.com/technologies/partner-sites.
For users in the European Economic Area (EEA), the United Kingdom and other regions where required, the app presents a consent form via Google's User Messaging Platform (UMP) before personalized advertising data is used; if you decline, non-personalized ads are shown. You can change your choice from the app's Settings screen ("Ad privacy settings") and reset or limit ad personalization in your device settings.
Children
The app is not directed to children under 13, and we do not knowingly collect personal information from children.
Your rights
Your app data exists only on your device; uninstalling the app removes it. You can change or turn off every feature from the app's Settings at any time. Depending on your region (e.g. GDPR, CCPA), you may have rights regarding data processed by the advertising SDK; you can exercise ad-related choices through the consent form and your device's ad settings.
Changes to this policy
We may update this policy from time to time. Changes will be posted on this page with an updated effective date.
Contact
Questions about this policy: bloodturtle@naver.com