LumaField: Physics Sandbox — Privacy Policy
Last updated: October 21, 2026
This policy explains how LumaField: Physics Sandbox (the App, Android package com.mathgeo.studio) handles information when you play, save scenes, record videos, view ads, or purchase premium features.
Privacy contact: serdacetinkaya57@gmail.com
1. Your creations and local data
The App stores settings, saved scenes, progress, and purchase-access information on your device. It does not require a LumaField account or provide its own cloud scene-storage service. Android backup and device-transfer features may copy eligible app data according to your device and Google account settings.
We do not include personal scene names, drawings, scene contents, exported scene codes, screenshots, recordings, file paths, or touch coordinates in our custom analytics events. We do not intentionally attach your creations to crash reports.
If you choose to export or share a creation or video, the application or service you select receives what you share and handles it under its own privacy policy.
2. Advertising
The free Classic mode may display a Google AdMob banner above the game. This banner is hidden for Studio Plus and Wind Tunnel Pro owners, in other game modes, and while recording. Removing ads does not automatically change your separate analytics or crash-reporting preferences.
Google Mobile Ads may collect and share IP addresses, device and advertising identifiers, app and device information, advertising interactions, and diagnostics to deliver and measure ads and prevent fraud. IP addresses may be used to estimate general location. The App does not request GPS or precise-location permission.
Where applicable, Google User Messaging Platform presents advertising privacy choices. You can revisit available choices in the App's privacy settings when that option is required and available. You can also manage your advertising ID in Android settings. Advertising data processing depends on your region, settings, and consent choices.
See the Google Privacy Policy: https://policies.google.com/privacy and Google Mobile Ads data disclosures: https://developers.google.com/admob/android/privacy/play-data-disclosure.
3. Optional usage analytics
Firebase Analytics usage collection is off by default. You can enable or disable it in Settings → Privacy and data, independently of crash reporting.
If enabled, custom events record game modes and playing time, tool selections and uses, built-in scene identifiers and categories, save and load actions, visual and physics options, and premium-screen and checkout interactions and results. Events may include your Free, Plus, or Pro access tier. We use these statistics to understand feature usage and improve the App.
Firebase Analytics may also process app-instance identifiers, sessions, interactions, device characteristics, operating-system and app versions, and general location information. Our custom events use catalog identifiers rather than your personal creations. We do not attach purchase tokens or payment details.
The App disables advertising-ID collection and advertising-personalization signals in Firebase Analytics. These settings are separate from AdMob choices. Disabling usage analytics stops further optional collection; it does not automatically delete previously transmitted data.
4. Optional crash reporting
Firebase Crashlytics reporting is off by default. You can enable or disable it independently in Settings → Privacy and data.
If enabled, reports may contain crash stack traces, non-fatal errors, timestamps, app and operating-system versions, device characteristics, installation-related identifiers, and the active game mode. If analytics is also enabled, Analytics breadcrumbs may help explain actions preceding a failure. We use reports to diagnose failures and improve stability.
Disabling crash reporting disables automatic reporting and requests deletion of locally queued, unsent reports. Reports already transmitted remain subject to the service's retention and deletion controls.
See Firebase Privacy and Security: https://firebase.google.com/support/privacy and Firebase Android data disclosures: https://firebase.google.com/docs/android/play-data-disclosure.
5. Purchases
Studio Plus, Wind Tunnel Pro, and available upgrade options use Google Play Billing. Google processes payments under its own terms and privacy practices. The App receives product identifiers, purchase tokens, and purchase-status information to provide and restore access. We do not receive your full card number or bank-account details.
Purchase-access information is stored locally. Purchase tokens are not included in our custom Firebase analytics events or crash-report custom fields. Wind Tunnel Pro includes Studio Plus access.
6. Recording and permissions
Screen recording starts only after you choose to record and approve Android's screen-capture request. A foreground service supports an active recording. Where supported, audio permission captures the App's playback audio for your video; this feature is not intended to record microphone conversations.
Recordings are saved on your device and are not automatically uploaded by the App. Internet and network access support advertising, privacy choices, Firebase services, and Google Play features. The App does not request contacts, camera, or precise-location permission for these functions.
7. Service providers and security
We use Google services for advertising, optional analytics and diagnostics, and purchases. They process relevant information for the purposes described above and may use infrastructure outside your country. Their policies describe their processing and safeguards.
Google Mobile Ads and Firebase encrypt SDK data transmissions in transit. No storage or transmission system can guarantee absolute security.
8. Retention, deletion, and your choices
Local app data remains until you delete it, clear app storage, or uninstall the App. Exported files and videos in shared storage may remain until deleted separately. Android backups are subject to your backup settings.
Analytics and crash data are retained according to the relevant Google service settings and retention rules. Advertising and transaction records are governed by the applicable Google services; some records may be retained for security, fraud prevention, or legal obligations.
You can change optional analytics and diagnostic preferences in the App, manage available advertising choices, and delete local creations. For privacy questions or requests to access or delete information, email serdacetinkaya57@gmail.com. Because the App has no LumaField accounts and uses service-generated identifiers, we may need additional information to locate a record and may not be able to associate a particular report with you. We will explain available options and limitations. Do not send passwords or payment-card details.
Depending on your location, applicable law may give you rights to access, correct, or delete information, restrict processing, withdraw consent, or complain to a data-protection authority. Withdrawing consent does not change the lawfulness of earlier processing.
9. Children's privacy
The App does not provide child accounts or ask children to submit personal information. If you believe a child has provided personal information through the App or our support email, contact us so we can investigate and take appropriate action. Advertising and optional data collection remain subject to applicable age-related requirements.
10. Contact and updates
If you email us, we receive your email address and whatever information you choose to send. We use it to respond and handle support or privacy issues.
We may update this policy when the App or its data practices change. The date above identifies the latest revision. Material changes will be communicated where required.
Contact the developer of LumaField: Physics Sandbox at serdacetinkaya57@gmail.com.