Hash Check Hub vs PureScan

Batch calculate MD5/SHA1/SHA256 values, verify file integrity, detect file tampering, export check files and schedule folder auto scan.

PureScan —— Your truly private on-device document scanner, OCR text extractor, and digital file manager. Tired of expensive weekly subscriptions, intrusive pop-up ads, forced export watermarks, or worrying about confidential contracts and personal IDs uploaded to cloud servers? PureScan is crafted with a single mission: Absolute Privacy & Peak Efficiency. Every edge crop, OCR recognition, full-text index, and PDF encryption runs strictly on your iPhone via the Apple Neural Engine. No network connection, no cloud upload, and zero data tracking. 【Why Users Around the World Love PureScan】 • 100% On-Device Processing: Documents never leave your device. Works offline in airplane mode with zero mobile data consumption. • Instant Full-Text Search: Automatically indexes document content locally. Type any word to locate the exact page in milliseconds. • Professional Searchable PDF: Exports native PDFs with aligned invisible text layers for easy selection, copying, and desktop search. • Completely Clean & Honest: no subscriptions, zero ads, no export watermarks, and zero third-party analytics SDKs. 【Powerful Core Features】 1. Smart Document Camera: - Powered by Apple VisionKit for instant automatic edge detection and multi-page continuous capture. - Manual 8-point corner adjustment with a 2.5× precision magnifying loupe. 2. ID Card & Passport A4 Stitching: - Capture front and back sides of driver’s licenses, IDs, or passport cards with built-in visual guides. - Automatically arranges both sides onto a standard 1:1 scale A4 sheet for instant color or B&W printing. 3. Security Anti-Theft Watermarking: - Built-in presets such as "FOR OFFICIAL USE ONLY" and "CONFIDENTIAL COPY". - Full-bleed diagonal tiling with customizable color (Gray, Red, Blue) and opacity to prevent identity theft. 4. Quick Screenshot & Photo OCR: - One-tap quick extract on the home screen automatically loads your latest screenshot. - Pre-warmed neural engine ensures zero lag, instant recognition, and one-tap text copying. 5. Page Management & Fast Sharing: - Grid thumbnail view, drag-and-drop page reordering, single-page deletion, rescanning, and rotation. - Share or save individual pages instantly without sending unnecessary pages. 6. Document Categories & Smart Search: - Organize files with customizable category capsules on the home screen. - Search across document titles and OCR text with highlighted context snippets. 7. Multi-Format High-Quality Export: - Searchable PDF (with embedded text layer and zero white-edge fit). - Password-protected PDF with standard AES encryption. - High-resolution multi-page long image (JPEG) or raw TXT text. 【Perfect For】 • Business & Office: Contracts, expense receipts, NDAs, invoices, whiteboard notes. • Students & Educators: Lecture slides, study notes, book digitization, research papers. • Personal Records: IDs, passports, insurance cards, tax documents, warranty certificates. 【Our Privacy Promise】 • PureScan does not request internet access permissions. • Camera access is used solely for document capture; Photo Library access is requested only when saving images. • What's on paper stays on your iPhone. —— For support or feedback, please reach out via "More → Feedback & Suggestions" inside the app.