Doc scanner apps for Android and iPhone provide convenient solutions for digitizing documents on the go. Popular options include CamScanner, Adobe Scan, and Microsoft Office Lens. These apps utilize smartphone cameras to capture high-quality scans of documents, receipts, and whiteboards. Users can then edit, crop, and enhance scans within the app before saving or sharing them in various formats such as PDF or JPEG. Additionally, features like OCR (optical character recognition) enable text extraction for easy editing and searching. With user-friendly interfaces and cloud integration, doc scanner apps streamline document management tasks, making them indispensable tools for professionals and students alike.