I prefer an app for grocery lists since it can be managed with a single hand while shopping - no need to stop in the middle of an aisle to pull out a pencil and cross something off, nor to print anything out before heading to the store, for that matter. Plus, I won't have to re-sync the list with what remain on the physical list at the end of the trip.

My software is highly idiosyncratic. I input recipes for the week, and it adds ingredients to the shopping list, but only some ingredients. Other staple ingredients are things we keep in standard inventory and these go on the shopping list periodically rather than on demand.

UNIX is a friendly environment for me to write my own software like this. Phones are hostile, they’re more like appliances. Pair up UNIX with old-school peripherals like printers and I’m in business.

But yeah I love my phone for its appliance-like uses.