Actually I know lots of people with scanners. Somewhat counter-intuitively, these people tend to be the least technical of those that I know. Most of the tech

Actually I know lots of people with scanners. Somewhat counter-intuitively, these people tend to be the least technical of those that I know. Most of the tech-heavy people I know have pretty much abandoned personal printers, but the non-techies still have and use them, and most of them are using multifunction devices that scan/copy/print. In my purely anecdotal world, this app is then a good solution for the techies who have a smartphone but no scanner. On the flip side, those techies tend not be the type to collect tons of sentimental photos, so I'm not sure how large the market would be.