PRAXIS SCIENCE LAB / ANDROID
LuminaPro — Privacy Policy
How Praxis Science Lab handles information for this Android app.
Effective date: 2026-09-28. This notice describes Android version 1.0.1 (2) and the configuration documented below.
Praxis Science Lab is the publishing brand used by Traian Anghel. For support or privacy questions, email traiananghel@gmail.com. Include the app name and version. Do not send passwords, medical records, private recordings or other sensitive information.
Information handled by the app
LED control, screen light, battery level and temperature, motion and ambient-light readings, settings, Morse messages and custom light patterns are processed on your device. The app does not capture photographs, video or audio, use location permission, provide its own user account or upload messages and patterns to a developer server. There is no separate analytics or crash-reporting SDK.
Permissions, services and sharing
Camera permission controls the LED only. Notification permission makes active-light controls visible. A foreground service and, when needed for timing, a wake lock keep user-started LED sessions running in the background. Sensors support optional gestures and brightness adjustment. Internet and network-state access support advertising and store services. Core lighting works offline. Banners are limited to Settings while all lighting is stopped.
Version 1.0.1 uses test banners only, after applicable advertising choices and when internet is available. Test advertisements do not generate revenue but may still send information to their provider. Refusing ads, no-fill or loss of connectivity does not block normal use. There are no interstitials, app-open ads or mandatory rewarded ads in this configuration.
The Google variant uses Google Mobile Ads and User Messaging Platform. Depending on consent and configuration, Google may process IP addresses and derived approximate location, device/advertising identifiers, interactions and diagnostic information for advertising, service operation and fraud prevention. The Huawei variant uses Huawei Ads Lite and requests non-personalized test banners after explicit acceptance; Huawei may process device/network identifiers, IP addresses, interactions and diagnostics. Non-personalized advertising does not mean no data processing. Advertising choices are available in Settings.
Commercial products and public verification keys are not configured in this evaluation release. Google Play Billing or Huawei IAP handles the optional one-time non-consumable purchase when configured. Stores process account, payment and transaction information under their policies; the developer does not receive payment-card details. Signed purchase records, including store tokens, are cached privately and checked for entitlement and offline access. Online restoration/revalidation contacts the relevant store. Restoring on a new device requires store access; purchases do not automatically transfer between stores. No subscription is introduced.
Retention and deletion
Settings, patterns and cached signed purchase records remain in private app storage until removed, app storage is cleared or the app is uninstalled. Android automatic backup is disabled. JSON imports and exports use the Android file picker and the destination you select; your selected storage provider may synchronize exported files under its own terms. Exported files remain after uninstalling and must be deleted separately. Removing app data does not refund purchases or erase records retained by stores or advertising providers.
Security
Private app files use Android application storage protections. No additional database-encryption guarantee is made. Keep your device protected and control access to files you export. There is no Praxis Science Lab account to delete for this app.
Support messages and external pages
If you contact us, we receive your email address and the information you choose to send. We use it to answer your request and resolve the issue, not for advertising. Correspondence remains only as needed for that purpose and any applicable legal obligations; you can request deletion. Our email provider processes messages under its own terms. We do not sell support correspondence.
Opening this policy or other external links sends ordinary connection information to the website or browser provider. See our website privacy notice. App-local data is not automatically included in those requests.
Your choices
You can clear local data and use the contact above to ask about support correspondence or request access, correction or deletion where applicable. We may need information to identify the relevant request. You may also contact your local data protection authority. Local app information is processed to provide the functions you use; support correspondence is processed to respond to your request.
Changes
We update this notice when app behavior or relevant practices change. The date and version above identify the policy you are reading.
Provider privacy information
Google privacy policy, Google Mobile Ads data disclosures and Huawei privacy policy. Provider records have their own retention periods and privacy controls; clearing app data does not erase them.