I recently switched pharmacies, and realized that sometimes software is not the best solution. The previous pharmacy had a system where I could order refills by calling a phone number and typing in the 7 digit prescription number. When it was ready to pick up I got a text message (formerly an automated call). This works for anyone with a phone, even a landline. The new pharmacy has a phone app and a web site. But I am dead set against putting any apps on my phone except for music streaming. It is way too much of a hassle and I don't really use the 'data' feature on my smartphone (I use WiFi for music when I am at home). I am not going to register on yet another web site.
For me, the best UX is no UI - just the phone call. There is no security risk, no password to remember, nothing to get lost (I can call from any phone)... Where is the downside to not having any software? Can we move in this direction rather then trying to get everyone to "Download our App!" and "Register on our Website!" We don't want to.