Welcome to 8D Studio ("the App"), a product of HORUSTRIX, LLC ("we," "our," or "us"), a company registered in Wyoming, United States. 8D Studio is a premium music player and 8D spatial audio converter designed to process audio entirely on your device.
We are committed to protecting your privacy. This Privacy Policy explains what information we collect, why we collect it, how we use it, and your rights regarding that information. This policy complies with the General Data Protection Regulation (GDPR), the California Consumer Privacy Act (CCPA/CPRA), and the developer guidelines of both the Apple App Store and Google Play Store.
By downloading, installing, or using 8D Studio, you agree to this Privacy Policy. If you do not agree, please do not use the App.
8D Studio is built on a "Zero-Backend" architecture. This means:
This architecture ensures the highest level of privacy for your personal music library.
We practice strict data minimization. We only collect the minimum data necessary to operate, maintain, improve, and monetize the App. We categorize collected data as follows:
| Data Type | What We Collect | Purpose | Legal Basis (GDPR) |
|---|---|---|---|
| Analytics Data | Anonymous, aggregated app usage events (e.g., feature usage frequency, screens visited, button taps). No Personally Identifiable Information (PII) is attached. | Product improvement, understanding feature adoption, and optimizing user experience. | Legitimate Interest |
| Crash & Stability Data | Crash logs, stack traces, device model, OS version, and app version at the time of a crash or non-fatal error. | Identifying and fixing bugs to ensure app stability and performance. | Legitimate Interest |
| Device Information | Device model, operating system version, app version, and language/locale settings. | Ensuring compatibility, delivering appropriate app configurations (e.g., maintenance mode, update prompts), and debugging. | Legitimate Interest |
| Advertising Identifiers | Advertising ID (GAID on Android, IDFA on iOS) — only on the Free Tier of the mobile app. | Serving advertisements through Google AdMob. | Consent |
| Transaction Metadata | Purchase confirmation, subscription status, and entitlement tier (Free/Pro). We do NOT collect or store your credit card number, bank details, or any financial account information. | Verifying your subscription status to unlock premium features. | Contract Performance |
| Data Type | What We Collect | Purpose |
|---|---|---|
| Support Inquiries | If you contact us via email, we collect your email address and the content of your message. | Responding to your request and providing customer support. |
To be absolutely clear, 8D Studio does not collect:
We use the limited data we collect for the following purposes only:
We do not sell, rent, or trade your personal information to any third party.
8D Studio requests the following device permissions on a "Just-in-Time" basis, meaning we only ask for a permission when it is directly needed:
| Permission | Purpose | When Requested |
|---|---|---|
| READ_MEDIA_AUDIO (Android 13+) / READ_EXTERNAL_STORAGE (older) | To scan and access your device's local music library for playback and 8D conversion. | When you first open the App or access the Library. |
| FOREGROUND_SERVICE_MEDIA_PLAYBACK | To allow audio playback to continue when the App is in the background, with notification controls. | Automatically, when playback starts. |
| INTERNET | To fetch remote configuration, serve ads (Free Tier), process payments, and send anonymous analytics/crash reports. | Automatically. |
| Permission | Purpose | When Requested |
|---|---|---|
| File Access (Document Picker) | To allow you to import audio files from the Files app, iCloud Drive, or other sources using the system file picker. | When you tap "Import Music." |
Important: 8D Studio does not request access to your Microphone, Camera, Contacts, Location, or Photo Library.
We employ trusted third-party services to help operate, analyze, and monetize 8D Studio. These providers process data on our behalf and are contractually obligated to protect it. Below is a transparent list:
| Provider | Service | Data Processed | Privacy Policy |
|---|---|---|---|
| Google Firebase Analytics | Anonymous app usage analytics | Aggregated event data, device info, app version | Google Privacy Policy |
| Google Firebase Crashlytics | Crash reporting and stability monitoring | Crash logs, stack traces, device model, OS version | Google Privacy Policy |
| Google AdMob | Mobile advertising (Free Tier only) | Advertising ID, ad interaction data | Google Advertising Privacy |
| RevenueCat | Mobile subscription management (iOS & Android) | Anonymous user ID, purchase receipts, entitlement status | RevenueCat Privacy Policy |
| Stripe | Web subscription payment processing | Payment details (processed directly by Stripe; we never see your card) | Stripe Privacy Policy |
| Supabase | Remote application configuration (read-only) | App version (to check for updates/maintenance) | Supabase Privacy Policy |
Note: We use Supabase exclusively for fetching read-only application configuration (such as minimum version requirements and maintenance mode status). No user data, audio files, or personal information is stored in or transmitted to Supabase.
Advertisements are displayed only to users on the Free Tier of the mobile app (Android and iOS). The Web version of 8D Studio does not display any advertisements.
Our advertising partner, Google AdMob, may collect your device's Advertising Identifier (GAID/IDFA) and usage data to serve advertisements. We comply with the IAB Transparency and Consent Framework (TCF).
Since 8D Studio does not require user accounts and does not store personal data on our servers, our data retention is minimal:
We take the security of your information seriously:
While we strive to use commercially acceptable means of protection, no method of electronic transmission or storage is 100% secure.
Depending on your jurisdiction, you may have the following rights:
If you are a resident of the European Economic Area or the United Kingdom, you additionally have the right to:
To exercise these rights, contact us at the address listed in Section 14.
If you are a California resident, you have the right to:
To exercise these rights, contact us at the address listed in Section 14.
8D Studio is not directed at children under the age of 13 (or the applicable age of digital consent in your jurisdiction). We do not knowingly collect personally identifiable information from children. If you are a parent or guardian and believe your child has provided us with personal data, please contact us immediately, and we will take steps to delete such information.
8D Studio is operated by HORUSTRIX, LLC, based in the United States. If you access the App from outside the United States, please be aware that your information (limited to anonymous analytics and crash data) may be transferred to, stored, and processed in the United States or other countries where our third-party service providers operate. We ensure appropriate safeguards are in place, such as Standard Contractual Clauses (SCCs), to protect your data in compliance with applicable laws.
We may update this Privacy Policy from time to time to reflect changes in our practices, technology, legal requirements, or other factors. When we do:
We encourage you to review this Privacy Policy periodically to stay informed about how we protect your information.
If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us:
© 2026 HORUSTRIX, LLC. All rights reserved.