Snagit, CamScanner, Microsoft Lens, Evernote Scannable, Capture2text, Crow Translate, OSS Document Scanner, GImageReader, Tesseract, Open Note Scanner, NormCap, Pocket Scanner, OpenScan, Quick Scan, Text Scanner (OCR), ScreenOCR for Android, doxcan, ScreenOCR for iOS, Scanner 2 PDF, U Scanner, Open Note Scanner app are some alternatives to Notebloc.