TinEye - Reverse Image Search to help find an image's source, duplicates or altered versions.

TurboScanner HD - TurboScanner HD is an app for iOS that enables you to convert the iPad or iPhone into a useful scanner and also serves as small fax or air printer in your pocket.

GImageReader - gImageReader is a simple Gtk/Qt front-end to the Tesseract OCR Engine.

Bfery Easy Scanner - Bfery Easy Scanner is a cross-platform solution that helps you scan certificates, documents, reports, tickets, and more with great ease.

Microsoft Lens - Microsoft Lens (formerly known as Office Lens) is an all-in-one application designed for Windows, Android, and Apple devices, allowing you to capture important information from signs, PDFs, whiteboards, and more to add.

Docus - Docus is a simple yet powerful Document Scanner for Android that enables you to scan various types of documents with great ease.