I have used this app for several years, including a period of several months when I used it to scan all our mail. Simple, fast, intuitive, and functional. Well worth the price. - de-skew mechanism- pdf or jpg - integration to google drive, mail, photosI routinely use it to do impromptu scans of whiteboards, letters, angled pix. The de-skew means you can get a good picture without glare or flash reflection, then straighten it. Maintenance and enhancement has tracked over all this time. The de-skew automated corner finding is finicky (A good contrast background helps a lot), but the UI to adjust it is quick and intuitive. This is important, because many pix require that you eyeball the perspective (whiteboard diagrams, store signs). The image post processing is also good, especially for documents. I use the integration to google drive and photos a lot. I scan and mail docs all the time. I always have the best picture of the whiteboard to distribute. Provided is a good way to build up a database of docs on your phone, but I have found that is a mixed blessing, security concerns). Currently keep it down to a few docs. I see there is now a cloud integration mode, which I haven’t used—if you trust this with your docs, I can see that it would make it a lot easier to maintain.