The right answer is to get those receipts into a digital format some other way, not with the camera.
I would have deleted this app after I tried wasting 30 seconds taking a nice little picture of a $20 receipt the first time.
I use JotNot Pro on my iPhone to track receipts. As soon as I get a receipt - say at a restaurant - I immediately snap a photo of it. JotNot takes a black and white contrast-enhancing picture of the cropped receipt that's as good as what comes out of a scanner and adds that image to my ongoing collection of receipts for that business trip.
At the end of my trip JotNot allows me to email a PDF of the collected receipts (or upload it to my DropBox).
I never lose receipts. I never have to deal with receipts that have rapidly faded because a little restaurant grease got on them (looking at you, Jimmy Johns). I never have to worry about finding a scanner and how to place each receipt on the scanner bed.
When I show co-travelers my process, they normally immediately download JotNot or find some alternative on Android since JotNot is iPhone only afaik.
I would be really sad if I had to go back to holding on to paper receipts and scanning them in via some other method.
Then I throw away the receipts and fill in the expense report later in whatever system I'm told to use.
I can't imagine an easier way to digitize a receipt, short of a receipt that's emailed to you from the get-go.
For me, it ends up being sticking them in a wallet/envelope and then scanning then in bulk when I get back. If I had a phone app that integrated with a back-end expenses system, I could probably be persuaded to use it because it would largely eliminate the manual process of creating an expense report. However, as it is, something like Expensify trades a one-time batch operation for a bunch more fiddling at the point of spending.
Try it out!
For my banking app, you can take a picture of a check to deposit it. Instead of needing to frame, focus and snap the picture (which is how it used to work a few updates ago), a frame appears on the phone screen - you merely line up the check inside the frame, and when it's lined up sufficiently the shutter clicks and takes the picture for you. It's quite nice actually.
I do it every time I deposit a physical check into my bank account with my BofA app it's pretty awesome, it even recognizes the deposit amount.
When you get back to your office - it's available in an excel sheet.
I'm not following your argument...