The short version
Stay with Reminders if every device you use is Apple's and a list with alerts is enough. Pick Palby Planner if you want the list on a timetable with your Google Calendar, on Android and Windows as well, with routines and habits beside it.
Who should pick which
Stay with Apple Reminders if
- Every device you use is an iPhone, iPad or Mac
- You want alerts by place as well as by time
- You share grocery lists and checklists with your family
Pick Palby Planner if
- You use Android or Windows as well
- You want to plan the day hour by hour around Google Calendar
- You want habits, routines and a focus timer with your list