Privacy Policy for FastMediaSorter

Last updated: November 30, 2025

Overview

FastMediaSorter is a media manager and slideshow application for local, network, and cloud storage. We are committed to protecting your privacy and operating transparently.

Data Collection and Storage

What Data We Access

FastMediaSorter accesses the following data only on your device and configured storage:

Local Storage
- Photos, videos, audio files on device and SD cards
- Used only for displaying, sorting, and organizing media
Network Storage (Optional - User Configured)
- SMB/CIFS, SFTP, FTP server credentials you provide
- File metadata from network shares
- Direct connections from your device to your servers
Cloud Storage (Optional - Google Drive, OneDrive, Dropbox)
- File metadata: names, sizes, thumbnails, modification dates
- Account email (for authentication display)
- Limited to folders you explicitly select
- OAuth tokens for authenticated access

What We Store Locally

All data stored in app’s private, encrypted storage:

Connection settings: server addresses, paths, credentials (encrypted)
User preferences: language, sort order, playback settings
Thumbnail cache: temporary images for faster loading
Database: resource configurations, file metadata cache

❌ No analytics or usage tracking
❌ No advertising data
❌ No behavioral tracking
❌ No location data
❌ No personal information (names, emails, phone numbers)
❌ No servers: Your data never goes to our servers (we don’t have any)
❌ No third-party data sharing

Logging and Debug Files

In DEBUG builds the app may optionally write diagnostic logs to a file in the app-specific external storage directory to help troubleshooting when ADB is not available.
- Location (example): /Android/data/com.sza.fastmediasorter.debug/files/logs/ on the device storage.
- These log files may include timestamps, log levels, component tags, and messages produced by the app and may include non-sensitive metadata such as file names and server addresses used by the app during operation.
- Logs do NOT contain stored passwords in plaintext (sensitive credentials are handled using secure storage).
- File logging is only enabled in debug builds and can be disabled by using the release build or by changing debug settings.

Cloud Storage Integration (Google Drive, OneDrive, Dropbox)

When you connect cloud storage (optional):

Authentication

Uses OAuth 2.0 for secure sign-in (Google, Microsoft, Dropbox)
You control which folders the app can access
Tokens stored encrypted on your device only

What We Access

File metadata: names, sizes, thumbnails, modification dates
File content: only when you view/copy/move files
Your email address: displayed in UI for account identification

What We DON’T Do

❌ Access files outside folders you select
❌ Share your cloud data with anyone
❌ Upload your data to our servers
❌ Scan your entire cloud storage
❌ Access other services (Gmail, Contacts, Calendar, etc.)

Data Usage

Thumbnails cached locally for performance
File operations happen directly: Device ↔ Cloud Provider
No intermediary servers or proxies

Revoking Access

Disconnect anytime:

In app: Settings → Cloud Resources → Sign Out
Google Account: Manage Permissions
Microsoft Account: App Permissions
Dropbox: Connected Apps

Provider Privacy Policies

Cloud access is subject to each provider’s privacy policy:

Network Access

Local Network (SMB/SFTP/FTP)

Direct connections from device to your servers
Credentials encrypted using Android Keystore
No intermediary services or proxies
Data never leaves your local network

Internet Usage

Google Drive API: only for authenticated access to your files
No telemetry, analytics, or tracking servers
All operations are user-initiated

Permissions Explained

The app requests minimum necessary permissions:

Storage Permissions

READ_EXTERNAL_STORAGE / WRITE_EXTERNAL_STORAGE: Access local media files (Android ≤12)
READ_MEDIA_IMAGES / READ_MEDIA_VIDEO / READ_MEDIA_AUDIO: Access media (Android 13+)
MANAGE_EXTERNAL_STORAGE: Optional for full storage access

Network Permissions

INTERNET: Connect to network shares and Google Drive
ACCESS_NETWORK_STATE / ACCESS_WIFI_STATE: Check connectivity

Other Permissions

WAKE_LOCK: Keep screen on during playback (user-controlled in Settings)

Data Security

Encryption

Network credentials encrypted using Android Keystore
OAuth tokens stored in encrypted preferences
Database protected by Android app sandbox
HTTPS/TLS for all cloud connections

Access Control

No remote access to your data
Each resource requires explicit user configuration
Permissions follow Android security model

Data Isolation

App data isolated from other apps
No cross-app data sharing
Uninstalling removes all app data permanently

Your Rights and Control

You have full control over your data:

Access

View all configured resources in Settings
Check cached thumbnails size

Modify

Edit or remove resources anytime
Change credentials, paths, settings
Update cloud folder selections

Delete

Clear Cache: Settings → Clear Cache (removes thumbnails)
Remove Credentials: Delete resources in Settings
Full Removal: Uninstall app (removes all data)
Revoke Cloud Access: Sign out or use Google Account settings

Export/Backup

Export settings to XML file
Import on new device
No automatic cloud sync

Third-Party Services and Libraries

Google Services

Google Drive API: File access in folders you select
Google Sign-In: OAuth 2.0 authentication
Subject to Google API Services User Data Policy

Open-Source Libraries

The app uses open-source libraries for functionality (not data collection):

SMBJ: SMB/CIFS network protocol
SSHJ: SFTP protocol
Apache Commons Net: FTP protocol
BouncyCastle: Cryptography
Glide: Image loading and caching
Room: Local database
Hilt/Dagger: Dependency injection
Timber: Logging (debug builds only)

None of these libraries collect or transmit user data.

Debug Logging (Debug Builds Only)

Debug builds may write diagnostic logs:

Location: /Android/data/com.sza.fastmediasorter.debug/files/logs/
Content: Timestamps, component tags, error messages, file names
NOT included: Passwords, credentials, file content
Release builds: No file logging

Data Retention

Local cache: Until cleared or uninstalled
Credentials: Until resource removed
OAuth tokens: Until revoked via Google Account
No server data: We don’t operate servers

International Users

FastMediaSorter available globally. All data processing occurs:

On your device
On your configured servers
In your cloud accounts (if connected)

No data transferred to external servers.

Children’s Privacy

FastMediaSorter does not knowingly collect information from children under 13. The app is designed for general media management and does not target children.

Compliance

This app complies with:

Google Play Developer Program Policies
Google API Services User Data Policy
Android Security Best Practices
GDPR Principles: Data minimization, user control, transparency

Changes to This Policy

We may update this Privacy Policy periodically. Changes reflected in:

Updated “Last updated” date
Published in app repository
Notification in app update notes (for major changes)

Continued use after changes constitutes acceptance.

Open Source

FastMediaSorter is open source. Review our code:

Repository: https://github.com/SerZhyAle/FastMediaSorter_mob_v2
License: [Project License]

Contact

For privacy questions or concerns:

Website: https://serzhyale.github.io/FastMediaSorter_mob_v2/
GitHub Issues: https://github.com/SerZhyAle/FastMediaSorter_mob_v2/issues
Email: sza@ukr.net

Summary (Plain English)

What this means:

✅ Your files stay where they are (device/servers/cloud)
✅ Passwords stored encrypted on your device
✅ Google Drive: only folders you choose
✅ No tracking, no ads, no analytics
✅ Uninstall = all data gone
✅ You control everything

We don’t:

❌ Have servers to store your data
❌ Sell or share your information
❌ Track your behavior
❌ Access more than you allow

By using FastMediaSorter you acknowledge and consent to this Privacy Policy.

This privacy policy is effective as of November 30, 2025.