Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.
Tesseract - Tesseract is an optical character recognition engine for various operating systems
Numi App - Numi is a beautiful text calculator for Mac.
Prizmo - Prizmo is a scanning application for Mac with Optical Character Recognition (OCR) in over 40 languages with powerful editing capability, text-to-speech, and iCloud support.
Soulver 3 for Mac - A smart notepad with a built in calculator
GOCR - GOCR homepage. GOCR is an OCR (Optical Character Recognition) program, developed under the GNU Public License.