The Hidden Camera Level in iOS 11

Notes does a very good job of fixing skew on ‘scanning’ pages. Try that and I think you’ll like the results. The only caveat is make sure you have contrast between the paper and the background.

When I got started using my iPhone 6s for mass scanning of paper documents, Notes didn’t have that feature. I think I paid 99 cents for Scanbot during a promotion. I like the pro features, it has pretty customizable “filters” for B&W 1 bit, greyscale, enhanced color, etc. The only thing I wish it had was “page dewarp” like FasterScan/Docr, to flatten out the curved pages in a book.

I haven’t used it, but apparently the Halide iOS camera app has a similar feature that works in other orientations and provides haptic feedback.