🛡️ 100% Offline & Zero Cloud Data Collection Guarantee
FileLens Pro is designed from the ground up as a strictly offline, privacy-first document intelligence and storage management platform. We do not collect, track, store, or transmit your personal files, extracted OCR texts, photos, videos, or Smart Cards vault secrets to any external cloud or third-party servers. All processing occurs 100% locally on your device.
1. Overview & Architecture
FileLens Pro functions as your offline "Second Brain" and intelligent file manager. Features such as optical character recognition (OCR), neural semantic search embeddings, visual duplicate detection, burst photo grouping, junk cache cleaning, and PIN-secured Smart Cards operate exclusively within the sandbox of your device using on-device processors.
2. Android Permissions We Request & Why
To deliver its features, FileLens Pro requests specific device permissions. Each permission is used strictly for on-device functionality:
📁 All Files Access (MANAGE_EXTERNAL_STORAGE)
Purpose: Required for the core File Manager and Storage Analyser & Cleaner.
- Allows users to browse, search, organize, rename, and manage files and folders across internal and external storage.
- Powers the Storage Analyser to calculate storage occupancy, detect junk/temporary cache files, locate large file space hogs, and identify exact byte-for-byte SHA-256 duplicate files across directories.
- Enables deep-scanning of documents and images for text extraction when indexing.
🖼️ Photos, Videos & Media (READ_MEDIA_IMAGES / VIDEO / AUDIO)
Purpose: Allows the app to index your photo and document library.
- Discovers document images, invoices, receipts, and book pages for on-device OCR text extraction and indexing.
- Extracts visual features for AI duplicate photo detection, posture grouping, and burst shot identification.
📷 Camera (CAMERA)
Purpose: Real-time capture for document scanning.
- Allows you to photograph paper documents, bills, notes, and identification cards directly inside the app for instant OCR and addition to your Smart Cards Vault.
- Photos captured via the camera remain solely on your device.
🔔 Notifications (POST_NOTIFICATIONS)
Purpose: Foreground service transparency.
- Displays an ongoing status notification showing exact progress while indexing files and performing background OCR.
- Ensures transparency so you always know when the on-device worker is active.
⚡ Battery Optimization Exemption (IGNORE_BATTERY_OPTIMIZATIONS)
Purpose: Uninterrupted background OCR and indexing.
- Prevents Android from freezing or terminating the on-device OCR worker when the screen is locked or while switching between apps during long indexing sessions.
- You maintain full control and can toggle this setting anytime from the system Settings.
🌐 Local Network & Wi-Fi (ACCESS_WIFI_STATE / INTERNET / MULTICAST)
Purpose: Offline PC Explorer & Local Wireless File Transfer.
- Powers the built-in HTTP and FTP servers, allowing you to access and transfer files between your phone and your PC browser or FTP client across your local Wi-Fi or personal hotspot.
- Enables peer-to-peer Wi-Fi sharing with nearby devices.
- No internet transmission: All data packets are exchanged strictly between devices on your local private network.
3. Smart Cards & Identity Management
FileLens Pro includes a Smart Cards Wallet for cataloging identity documents, cards, notes, and records:
- 100% On-Device Processing: Card data and attached document files are stored and managed entirely within local device storage.
- Zero Remote Synchronization: Your cards, extracted text, and personal records are never uploaded to any remote server or cloud account.
4. On-Device AI & Semantic Intelligence
FileLens Pro incorporates state-of-the-art on-device artificial intelligence for deep offline semantic search and document understanding:
- On-Device OCR: High-speed Tesseract OCR and native ML text recognition extract text directly on your smartphone CPU/GPU/NPU without sending pixels or document data outside your device.
- On-Device MiniLM Neural Embeddings (all-MiniLM-L6-v2): To enable natural language conceptual search (such as finding "electricity bill" when only the utility provider's name or meter reading appears), FileLens Pro executes a quantized all-MiniLM-L6-v2 sentence transformer neural network 100% offline via the on-device ONNX runtime.
- The model computes 384-dimensional mathematical vector representations of your indexed document texts directly on your device hardware.
- These vectors and their SQLite vector indexes are stored exclusively within the application's local private sandbox database.
- Zero Cloud / Network Transmission: Neither your raw search queries, document texts, nor their mathematical vector embeddings are ever uploaded, transmitted, or shared across the internet. Everything is calculated and compared locally using on-device cosine similarity math.
- Optional External AI Providers: If you explicitly choose to configure a custom AI provider (e.g., entering your own OpenAI or NVIDIA API key), only the specific text or document excerpt you explicitly submit for AI summarization is transmitted to that provider. This feature is completely optional, disabled by default, and requires explicit user opt-in and personal API credentials.
5. Data Retention & User Deletion Rights
Because FileLens Pro stores all data locally:
- You have complete sovereignty over your data at all times.
- You can clear the entire search index, extracted OCR text, and caches at any time via Settings → Clear Index.
- Uninstalling the app immediately and permanently deletes all SQLite index databases, cached thumbnails, Smart Card records, and local configurations.
6. Third-Party Analytics & Tracking
FileLens Pro contains no third-party tracking libraries, no advertising SDKs, no behavioral analytics, and no user-profiling tools. Your usage habits, search terms, and file metadata belong strictly to you.
7. Children's Privacy
FileLens Pro does not knowingly collect or solicit any personal information from children or any other users, as the application collects no personal data whatsoever.
8. Contact & Support
If you have any questions, feedback, or concerns regarding this Privacy Policy or your data security, please feel free to reach out to us: