This doesn't solve all the problems the app mentioned is solving, but if you're using iOS (based on the Apple Notes) - Reminders is oddly a solid grocery list tool:
- It can be shared with others - It can be updated natively with Siri voice commands ("Hey Siri - Add eggs to grocery list" works out of the box) - It gives other users notifications when it changes (this is also my major negative) - It "knows" it's a grocery list and tries to do some smart grouping/labeling (Dairy, Sauces, etc)
I'm just really not sure why that's built into Reminders and not Notes
You can control the notifications – just go into the Managed Shared List section, and there's an area to control notifications when adding (on by default) and when completing (off by default) items.