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Effective date and last updated: September 16, 2026

This privacy policy applies to the Android mobile application Speaker Cleaner: Water & Dust (identified by package name com.umbrabyte.speakercleaner.water.eject), developed and published by Umbrabyte Apps. It complements the general Umbrabyte Privacy Policy and serves as the official privacy policy linked within the app and its Google Play Store listing.

Plain language summary: Speaker Cleaner turns your phone into an acoustic cleaning lab that expels trapped water and dust from your phone or earbud speakers using calibrated sound waves: 165 Hz water-ejection pulses, 20 Hz-20 kHz dust-removal sweeps, an 800 Hz maintenance tone, a manual tone generator and a stereo sound-test lab. Every cleaning tone is synthesized locally on your device and played through your own speaker; your cleaning session history, manual presets, speaker-health results and app preferences are stored strictly on your device. Umbrabyte operates no cloud servers, requires no user account, includes zero advertisements, runs no analytics, and never sells or rents personal data. Data only leaves your device when Google Play processes an optional PRO purchase (speakercleaner_pro_lifetime) or checks for app updates.

This summary does not replace the detailed terms set forth below.

1. Scope and key facts

Speaker Cleaner: Water & Dust is an acoustic utility that cleans phone and earbud speakers with calibrated sound waves. It provides a 165 Hz water-eject mode, a 20 Hz to 20 kHz dust-removal resonance sweep, an 800 Hz maintenance tone, a manual 20 Hz-20 kHz tone generator, a stereo sound-test audio lab, and headset tools that eject water or auto-clean earbuds.

• No account or registration required: The application does not ask you to create a user account, profile, or provide personal credentials.
• 100% on-device audio synthesis: Every tone is generated in real time by the app’s own synthesis engine (AudioTrack PCM) and played through your speaker. No audio is downloaded, streamed, or uploaded.
• Zero ads or cross-app tracking: The application contains no advertising SDKs or tracking libraries and does not use the advertising ID.
• No data sales: Umbrabyte does not sell, rent, or trade user personal information under any circumstances.
• No automated profiling: We do not perform user profiling or automated decision-making.
• Local storage only: Cleaning session history, manual presets and speaker-health results live in a private on-device Room database (AppDatabase); preferences, the daily free quota (3 cleanups per day, resetting at local midnight) and the PRO entitlement cache live in private on-device DataStore storage.
• Platform integration: The optional PRO purchase (speakercleaner_pro_lifetime, one-time lifetime purchase) is handled via official Google Play Billing APIs. Update checks use official Google Play Core APIs.

2. Controller

The developer and data controller for any data received directly by Umbrabyte (such as customer support correspondence) is:

• Full Name: Cristian Donet Segura
• Studio Name: Umbrabyte Apps
• Business Address: Calle Pintor Camarón, nº 24, 12560 Benicasim, Castellón, Spain
• Tax ID (NIF): 20468489F
• D-U-N-S® Number: 374071851
• Privacy & Support Contact: support@umbrabyte.app

Platform services such as Google Play Store act as separate independent controllers for data processed under their own privacy policies.

3. Data and permissions

3.1 Information stored and processed on device

The app processes the following information solely within the private local storage of the app:

3.2 Permissions & device access

Android permissions are requested transparently only when initiating a feature requiring them:

The application does NOT request location, contacts, call logs, SMS, photos or media files, health data, or biometric data, and it does not use the advertising identifier. Cloud backup of app data is disabled (android:allowBackup="false").

3.3 Data Umbrabyte does NOT receive

During standard use of Speaker Cleaner, Umbrabyte does not receive or store on servers:

• Any audio captured by the microphone during sound tests.
• Your cleaning history, manual presets, or speaker-health results.
• The frequencies you play or the results of your cleaning sessions.

4. External services

4.1 No servers for core features

All acoustic cleaning features work entirely on your device: the tones are synthesized locally and played through your own speaker. No Umbrabyte server participates in, monitors, or stores any cleaning session.

4.2 Payments via Google Play Billing

The optional lifetime PRO access (speakercleaner_pro_lifetime, one-time purchase, no subscriptions) is processed via official Google Play Billing. Google handles your payment methods, transaction receipts, and billing details. Umbrabyte never receives or stores credit card numbers or financial details.

4.3 Update checks via Google Play Core

The app uses official Google Play Core APIs to check if Google Play has published a newer version and offer seamless updates.

5. Purposes and legal bases

Under the EU General Data Protection Regulation (GDPR), processing operations rely on:

6. Retention and deletion

7. Security

App data is isolated within Android’s private app sandbox, and cloud backups are disabled. All audio processing happens locally on your device; no acoustic content ever leaves it. Transactions and update checks strictly use encrypted connections to official Google Play services.

8. Rights worldwide

You hold privacy rights including access, correction, deletion, and objection under GDPR (EEA/Spain), UK GDPR, CCPA/CPRA (California/US), LGPD (Brazil), PIPEDA (Canada), and Privacy Act (Australia). Contact support@umbrabyte.app to submit requests.

9. Children

Speaker Cleaner is an acoustic utility intended for general use. We do not knowingly collect personal data from children under 13 (or local statutory age).

10. Changes

We will publish any policy updates at this web address, updating the effective date above.

11. Contact

Cristian Donet Segura — Umbrabyte Apps
Calle Pintor Camarón, nº 24
12560 Benicasim, Castellón, Spain
Email: support@umbrabyte.app
Website: https://umbrabyte.app