🛡️ Master Policy Document ✓ Google Play Data Safety Certified 🔒 100% On-Device Processing Effective Date: January 1, 2026 • Last Revised: October 2026

App Build Studio Global Privacy Policy

At App Build Studio, your digital privacy is our foundational architecture, not an afterthought. This comprehensive Privacy Policy governs our official developer website (appbuildstudio.com), our direct developer communications, and our entire portfolio of published Android utilities and productivity applications.

Zero Cloud Uploads
All files, media, voice audio, system telemetry, and notifications remain strictly inside your device hardware.
No Personal Profiles
We do not harvest names, telephone numbers, contacts, email lists, or GPS coordinates across any of our software.
Google Play Verified
Targeting modern Android 14/15 APIs with granular runtime permissions and verified Play Console Data Safety forms.
Instant Data Deletion
Uninstalling any app immediately and permanently erases 100% of its local sandbox, logs, and database records.

1. Scope & Studio Overview

This Global Privacy Policy applies to all end-users who visit the official developer website for App Build Studio (accessible at appbuildstudio.com) and all individuals who download, install, or interact with applications published under our official Google Play developer account (App build studio).

Our mission is to engineer high-utility, lightweight Android software that respects consumer autonomy. We believe software utility tools do not need to track user identity, profile habits, or monetize personal data to deliver a world-class mobile user experience.

2. Core Architectural Principle: 100% On-Device Processing

The bedrock of our application design is local execution. All computationally intensive and data-handling operations are executed entirely using your smartphone's onboard hardware (CPU, GPU, NPU, and local flash storage). No sensitive data payloads are ever transmitted to our servers or third-party cloud infrastructure.

Application-Level On-Device Safeguards:

•
Voice Recorder: High-definition audio recording (WAV, AAC, M4A) and waveform visualizations are processed locally in real-time. Sound files are saved strictly to your internal storage or SD card. We never upload, stream, or transcribe voice notes to external servers.
•
Device Info (System, CPU, RAM): Hardware metrics (clock frequency, thermal telemetry, battery degradation, display parameters) are polled from standard Android OS system interfaces into volatile RAM. Telemetry is never stored permanently or broadcasted externally.
•
Duplicate File Finder & Remover: Cryptographic checksum hashing (MD5/SHA) and file similarity scans run directly against local device media storage. No personal photos, videos, or documents are uploaded to cloud servers.
•
Media Video Audio Converter: Video and audio re-encoding, extraction, and trimming are executed locally using native embedded media codecs. Your private media never leaves your smartphone.
•
Notification History Log: Push notifications are intercepted and cataloged locally inside an encrypted private SQLite database residing in your device's sandboxed storage.
•
Barcode Scanner & QR Scanner: Camera sensor frames are decoded frame-by-frame entirely on-device using local computer vision libraries. No camera imagery is stored or uploaded.

3. Information We Collect

A. Website Visitors & Inquiries

When you visit our official developer website, you may browse without creating an account or providing personal details.

  • Voluntary Contact Form Submissions: If you contact us via our developer contact form (contact.php), we receive your name, email address, subject, and message. We use this information exclusively to communicate with you, troubleshoot software bugs, or address feature suggestions. We never sell or share inquiry records with commercial advertisers.
  • Privacy-Preserving Bot Shield: Our contact portal uses an in-house cryptographic vector SVG Captcha that operates without third-party tracking cookies or behavioral surveillance scripts.

B. Mobile Application Usage

None of our mobile applications require account registration, passwords, phone number validation, or social login. We do not collect or store personal identifiers (such as government IDs, physical home addresses, or financial payment details).

4. Android Device Permissions & Transparency

To perform their core utility functions, certain applications require specific Android runtime permissions. Each permission is requested dynamically at runtime with a clear context prompt and can be revoked at any time via your device's Settings > Apps > Permissions menu.

Android Permission Associated Application Strict Functional Purpose
RECORD_AUDIO Voice Recorder, Device Info Enables acoustic capture when the user presses "Record". In Device Info, used strictly for the hardware microphone self-test.
CAMERA Barcode Scanner, Device Info Accesses camera stream locally to detect and decode QR/barcodes. Never transmits captured video or frames externally.
READ_MEDIA_* Duplicate Cleaner, Media Converter Enables user-directed scanning and transcoding of specific audio, video, or image files selected by the user.
NotificationListener Notification History Log Mandatory Android service allowing the app to store incoming push alerts into a local database on the phone.
POST_NOTIFICATIONS Voice Recorder, Media Converter Displays persistent status controls (Pause/Stop recording or background media conversion progress).

5. Third-Party Services & SDK Disclosures

To distribute applications reliably, support free development tiers, and identify application crashes, our mobile apps integrate trusted third-party SDKs provided by Google. These providers may collect pseudonymous device identifiers in accordance with their respective privacy policies:

Google Play Services

Required for essential runtime operations, in-app updates, security patches, and APK license verification.

→ Google Privacy Policy

Google AdMob

Displays non-personalized or contextual advertisements to fund ongoing free updates in compliance with Google Play Developer policies.

→ AdMob Data Usage Info

Firebase Crashlytics & Vitals

Collects anonymized stack traces and crash telemetry (e.g. OutOfMemory exceptions) to help our engineering team diagnose and fix bugs.

→ Firebase Privacy Details

6. Application-Specific Policies Directory

For granular Play Store declarations, specific permissions, and standalone compliance notices:

6 Published Documents
Voice Recorder Privacy Policy

Voice Recorder Privacy Policy

com.appbuildstudio.voicerecorder
100% on-device DSP audio recording. Zero voice recordings or metadata uploaded to external servers.
✓ Google Play Verified Read Policy →
Device Info: System, CPU, RAM Privacy Policy

Device Info: System, CPU, RAM Privacy Policy

com.appbuildstudio.deviceinfo
Real-time diagnostic telemetry rendered locally in volatile RAM. No hardware identifiers tracked.
✓ Google Play Verified Read Policy →
Duplicate File Finder Remover Privacy Policy

Duplicate File Finder Remover Privacy Policy

com.appbuildstudio.duplicatefilefinderremover
Byte-level hash indexing executed purely on local storage. No file contents or thumbnails transmitted.
✓ Google Play Verified Read Policy →
Barcode Scanner & QR Scanner Privacy Policy

Barcode Scanner & QR Scanner Privacy Policy

com.appbuildstudio.barcodescanner
Optical barcode decoding performed on-device. Scanned history stored locally in app database.
✓ Google Play Verified Read Policy →
Media Video Audio Converter Privacy Policy

Media Video Audio Converter Privacy Policy

com.appbuildstudio.mediaconverter
Local FFmpeg media transcoding on device CPU/GPU. Converted files saved to user-selected folders.
✓ Google Play Verified Read Policy →
Notification History Log Privacy Policy

Notification History Log Privacy Policy

com.appbuildstudio.notificationhistorylog
Notification logs stored in encrypted local SQLite database. Zero external syncing or cloud transmission.
✓ Google Play Verified Read Policy →

7. Children's Online Privacy Protection Act (COPPA)

Protecting the online privacy of young children is paramount. Our applications and website are intended for general utility audiences and are not directed to children under 13 years of age (or under 16 in certain European jurisdictions).

We do not knowingly solicit, collect, or process personally identifiable information from children under 13. If you are a parent or legal guardian and believe that a child has provided us with personal data, please contact our Data Protection Officer immediately at info@appbuildstudio.com and we will swiftly investigate and purge such records.

8. International Privacy Rights (GDPR & CCPA/CPRA)

A. General Data Protection Regulation (GDPR) — European Users

If you reside in the European Economic Area (EEA), you enjoy statutory rights under the GDPR regarding personal data:

  • Right to Access: You may request confirmation of whether any personal data concerning you is processed.
  • Right to Rectification & Erasure: You have the right to request erasure of inquiry communication records.
  • Right to Restrict or Object: You may object at any time to processing carried out on the basis of legitimate interests.

B. California Consumer Privacy Act (CCPA / CPRA)

Under California Civil Code Section 1798.100, California residents have the right to know what personal information is collected, disclosed, or sold.

Clear Notice: We Do Not Sell or Share Your Personal Information.

App Build Studio has never sold, leased, or monetized personal information to data brokers or third-party marketing firms, and will never do so in the future.

9. Data Retention & Complete Data Deletion Rights

Because our applications store operational data exclusively on your device, you retain complete physical custody of your data at all times:

  • Local File Deletion: Any audio recording, converted media file, or scanned barcode record can be deleted immediately directly from within the respective application's history or playback screens.
  • Complete Device Purge: When you uninstall an application via your Android launcher or Google Play Store, Android automatically deletes the application's isolated sandboxed storage, removing 100% of all associated local records, configuration files, and temporary caches.
  • Website Inquiry Records: Support emails and contact inbox entries are retained for a maximum of 180 days for customer support history, after which they are permanently expunged.

10. Security Safeguards & Infrastructure Hardening

We enforce multi-tiered administrative, physical, and technical safeguards across all digital touchpoints:

  • Transport Layer Security (TLS 1.3): All website traffic is encrypted in transit with modern HTTPS certificates and enforced HSTS protocols.
  • Zero Direct Database Access: Application configuration and contact messages are stored behind hardened Apache access controls denying all direct web access.
  • Android App Sandboxing: Our software strictly adheres to Android OS sandboxing, preventing other unauthorized apps on your phone from accessing private application data.

11. Policy Changes & Data Protection Officer Inquiries

We may periodically revise this Global Privacy Policy to reflect software feature releases, updated Android OS platform guidelines, or regulatory requirements. Any modifications will be posted immediately to this URL with a revised "Last Revised" date.

Data Protection & Developer Support Officer

Direct line for privacy inquiries, data deletion requests, or compliance auditing
Official DPO Email:
info@appbuildstudio.com
Google Play Developer:
App build studio →
Interactive Helpdesk:
Open Contact Form →