Applies to the Lumen Web Player Android app · Effective 30 October 2026
Lumen is a web browser and media player for Android. It has no account, and it sends
nothing about you to its developer. This page explains exactly what the app does with data, in full.
Short version: the developer collects nothing, stores nothing on a server, and
shares nothing with anyone. Everything the app remembers stays in the app's private storage on your
device, and you can erase all of it by clearing the app's storage.
Who we are
The app is published by COMPLIANCE ENGINE LTD ("we", "the developer"). For any
question about this policy or about data in Lumen, write to
lumen@compliance-engine.io.
What Lumen does not do
No account, sign-in, or profile inside Lumen.
No analytics, telemetry, or usage reporting.
No advertising SDK, and no advertising identifier (the app does not read or use Android's
Advertising ID).
No crash-reporting or remote-logging service.
No access to your location, contacts, calendar, photos, SMS, or call history.
No selling, renting, or sharing of any data by the developer — there is no data to sell.
What stays on your device
These are stored locally by the app, in its own private storage, and are never transmitted to the
developer:
Settings — content blocking on or off, your chosen search engine, per-site
pauses, and the last address you opened.
Browsing data — cookies, local storage, and cache created by the websites you
visit, held inside the app's sandbox. Clearing the app's storage or uninstalling Lumen deletes
them.
Filter lists — the blocking rules bundled with the app, plus any lists you add.
Library index — the list of media files on your device that the Library tab
shows (see below).
Android's cloud backup is switched off for Lumen, so none of the above is copied to Google's
servers through device backup.
Permissions, and why each one exists
Internet and network state — to load the pages you ask for, and to know when the
connection drops so playback can pause and resume.
Media playback foreground service and notifications — to keep a video or audio
stream running when you leave the app or lock the screen, and to show a notification with play,
pause and stop.
Media and audio files (Android 13+) / storage (older versions) — to list and play
video and audio files already on your device in the Library tab. The app reads file details and
content for playback only. Nothing is copied, uploaded, or shared. If you refuse, the Library tab
stays empty and the rest of the app works normally.
Microphone — used only when you tap the microphone button on a website that
offers voice search (for example YouTube's search bar) and grant the prompt. The recording is
handed to that website's speech service to turn it into text. Lumen does not record, store, or
send your audio anywhere else, and never listens in the background.
Downloads — files you choose to download are saved to your device's Downloads
folder by Android's own download manager.
Websites you visit
When you open a site, your request goes directly from your device to that site, exactly as it would
from any other browser. That site receives your IP address, your requests, and any cookies it sets, and
it is governed by its own privacy policy — not this one. We do not operate a proxy, we cannot see your
browsing, and we receive no record of the sites you visit.
Sites you open may be run by other companies with their own terms. We do not control their content
or their practices.
Content blocking
Blocking runs entirely on your device against lists bundled with the app and any lists you add. No
page you visit and no address you block is reported anywhere.
Children
Lumen is a general-purpose browser intended for a general audience and is not directed at children
under 13. Because the app collects no personal data at all, it does not knowingly collect personal
data from anyone, including children.
Your control over your data
Everything the app keeps lives in its own storage on your device. You can delete all of it at any
time with Android Settings → Apps → Lumen → Storage → Clear storage, or by
uninstalling the app. There is no server-side copy to request, and no account to close.
Data retention
The developer retains no user data, so there is nothing to retain, archive, or delete on our side.
Changes to this policy
If a future version of Lumen begins collecting or sharing anything, this policy will be updated
before that version is released, and the change will be noted here with a new effective date.