Awesome app; syncs almost perfectly between my wife's and my iPhones.
She can make a list at home and I can get the items when coming home from work.
The history-list is local, which is sort of a shame, as this gives differences depending on which device is used to add items (think of spelling) and it's ONE history for ALL 7 lists we use.
But the biggest downside is lack of support; last update was over 3 years ago and introduced a couple of snags, like ignoring rotation lock and not keeping the screen from sleeping.
And no proper implementation for phones with FaceID, so the app is letterboxed.
Despite all of that, I'm still uninformed it daily as I haven't found a proper alternative yet.