Photomyne. This app allowed me to quickly scan photos from an old photo album of my grandmothers.
The app did a good job capturing both the older black and white photos and 'newer' color photos.
I also used the Photo Transfer App to quickly move the photos off of my phone and into dropbox for use on my computer.
Even though this is a quick easy way to convert these photos to a digital format, there is a downside: all of my images are in jpeg format and not .tiff format.