Thanks, iPhone J.D., for the great review!
The app streamlines the task of fetching a patent in multiple ways. First, the app makes it as easy as possible to enter the patent number. You can type the number using a numeric keypad. Better yet, if you have access to a hard copy of the first page, you can tap the barcode button at the top right of the app to scan the barcode.
For anyone who is not already reading Jeff Richardson's excellent site, iPhone J.D. is the oldest and largest website for lawyers using iPhones and iPads. Please check out the rest of his review here: https://www.iphonejd.com/iphone_jd/2019/05/review-accio-patent.html