Freezer stash app???

My lo is 9 months old, and we're trying for another baby (🤞🏻)!

I've heard that your milk sometimes dries up, so I'm working on a stash just in case, so we don't have to switch to formula.

Only have roughly 100oz so I have a ways to go.

So 2 questions, does anyone have an app that tracks their freezer stash because I can't find one.

And also, how many ounces of breastmilk did your littles take at 9, 10, 11, and 12 months per day with solid foods.

He has 3 meals and 2 snacks.