SUBWAY®

I have found this app to be pretty usable, though it is a lot easier to find things by exploring by touch instead of flicking around the screen. The most difficult part seems to be creating and entering your pin when you log in because the buttons on the keypad are not labelled, so VO just says "button". however, they are arranged like a telephone keypad at the bottom of the screen, so once you find it you can easily log in. If you are in an area that supports mobile payments, this process is totally accessible and I use it all the time. You just tell the cashier that you want to do mobile payment, then you just point your device's camera at the QR code that shows up on the terminal. Sometimes I have to have them help me position my phone, but it works most of the time. My phone vibrates and then I just select the card I want to use and it completes the payment.

I haven't tried ordering ahead yet, but it looks to be reasonably accessible, though again it's a lot easier to do dragging around the screen and split tapping. All the condiments you can put on your sandwich are there, though.