Privacy Policy - ScanFlow

Last updated: January 2024

1. Native iOS Document Processing

ScanFlow utilizes Apple's native frameworks for superior document processing with complete privacy protection:

  • Apple Vision Framework: Real-time document detection with 100% on-device processing
  • Core Image Framework: Native perspective correction and image enhancement
  • PDFKit Integration: Native iOS PDF generation and multi-page document creation
  • Local Processing Only: All document analysis happens exclusively on your device
  • No Cloud Processing: Your documents never leave your device for processing
  • Gallery Import: Process photos from your gallery with the same privacy standards
  • Swift Native Modules: Performance-optimized native iOS processing

2. Data Collection and Storage

ScanFlow processes and stores the following data types exclusively on your iOS device:

  • Document Images: Photos captured with the camera or imported from gallery
  • Processed Images: Perspective-corrected and enhanced versions using Core Image
  • PDF Documents: Multi-page PDF files generated with iOS PDFKit
  • Detection Data: Document corner coordinates and confidence scores
  • User Preferences: App settings and scanning configurations stored in iOS AsyncStorage
  • Processing History: Recent scan metadata stored locally for quick access
  • Gallery Access: Selected photos processed with same privacy standards as camera captures

Storage Location: All documents and data are stored exclusively on your iOS device using secure file system storage. No cloud processing or remote storage is used.

3. iOS-Native Technology Stack and Security

ScanFlow is built exclusively for iOS using Apple's native frameworks and security measures:

  • React Native 0.80.1: iOS-focused mobile development with TypeScript
  • Apple Vision Framework: Native document detection with hardware acceleration
  • Core Image Framework: Apple's advanced image processing for perspective correction
  • Swift Native Modules: EdgeDetectionModule.swift and PerspectiveCorrectionModule.swift
  • iOS Security: Benefits from iOS sandboxing and app security architecture
  • Local File System: iOS secure storage with no external data transmission
  • Hardware Acceleration: Utilizes iOS GPU and Neural Engine for processing

4. iOS Camera and Photo Library Permissions

ScanFlow requires specific iOS permissions for document scanning functionality:

  • Camera Access (NSCameraUsageDescription): Required for capturing document photos using VisionCamera
  • Photo Library Access (NSPhotoLibraryUsageDescription): Enables import from gallery feature
  • Photo Library Add (NSPhotoLibraryAddUsageDescription): Allows saving processed documents to Photos app
  • Local File Storage: iOS app sandbox for storing processed documents and PDFs
  • No Location Access: App does not request or use location services
  • No Microphone Access: Audio permissions are not required or requested

All permissions are used exclusively for document scanning and processing. No personal data beyond your selected documents is accessed or processed.

5. Contact Us

For privacy questions about ScanFlow app:

Email: muharrem@globai.org

LinkedIn: Muharrem Yurtsever