This is one of my go-to apps that I use all of the time-easier than using my printer/scanner at home. Needs bright light but that is easy to find. I use it to keep copies of important documents, to take copies of receipts before I file expense claims, to scan signed documents to send by e-mail. Can add different tags to make things a lot easier to find than being in my PhotoStream. Sometimes it does not recognize the edge of the doc otherwise I would give it 5 stars. I have been using the free version but plan to purchase the plus version to help support development.
Flynne Patlach about Scanner App: Genius Scan, v3.10.3