||I have been using TinyScan for iPhone. It is user-friendly and reliable for scanning documents on the go, but some features in your suggested apps look interesting. For photo scanning, I just love Pic Scanner. It works on both iPhone and iPad, and pictures look especially good on the larger iPad screen. Its functions are very different from those of document scanners, so got both types of apps. My HP desktop scanner has practically got mothballed since I got these two apps.