This app was mentioned in 11 comments, with an average of 1.00 upvote
I use the Cozi Family organizer. It syncs with my Google calendar, let's me make lists, meal plans, and reminders, I can also share those lists with husband and have separate lists and calendar events for each family member. I can also switch between computer and phone, which is awesome.
I've got two widgets on my homepages. One is my grocery list so I can quickly add things as I run out and my to do list so I can see it at a glance.
here is a play store link if you're interested.
For any families/couples out there: Cozi
My wife and I use it for tons of stuff. We share a family calendar on it and it allows me to see when she has appointments, or vice versa, who they are for, if it includes the kids or not, etc.
Additionally, it allows for shopping lists (per location), to do lists (per person), and it will save recipes and allow you to just add the recipe to the shopping list and move all the ingredients to the shopping list automatically.
It is very useful. We used it free for several years, but recently my wife wanted a few of the extra features, so we paid for the Gold version. I couldn't possibly tell you what the gold version gives you, but she seems happy with it.
Oh, and notifications via device and email if you want for reminders to appointments, etc, at different times (1 day, 2 hours, etc).
cozi (Play Store) is what my polyculeethane uses and as long as everyone updates it and looks at it, it works well for us.