In researching affordable OCR apps for iOS, I came across this cheap alternative using full-featured software like GoQ’s WordQ, or Kurzweil to read printed documents aloud. ABBYY’s TextGrabber for iOS ($3.99 – iTunes App Store link) does a decent job at digitizing printed text. Once the text is digitized, the “Speak Selection” accessibility feature built-in to iOS 6 can be used to read the scanned text aloud. It’s not perfect, and works best on high contrast printed text, but it works quite well and is very affordable as long as you already have an iOS device.
Here’s a short tutorial I posted on YouTube: