For Mac · Made for families
My Piggie Bank gives a child their own set of books — what they have, where it lives, what they spent, and how close they are to the thing they’re saving for.
macOS 14 or later · Universal · No ads, no accounts, no tracking
Three places, and a kid decides what goes where. It’s envelope budgeting, sized for a seven-year-old.
Cash actually in their pocket. Easy to spend — which is the point, and the lesson.
Put away on purpose, with an optional monthly bonus so saving visibly beats spending.
A slice reserved automatically, before they get the chance to spend it. You choose what it’s for.
Counting
Tap out actual money, penny through $100, drawn at true relative sizes — a dime really is smaller than a penny, with a milled edge on the coins that have one.
Counting out change is the first money skill there is. Here it’s a math lesson hiding inside a game.
Goals
A bike, headphones, a telescope. The bar fills as the balance grows, and delayed gratification stops being an abstraction.
When the money is finally there, “I bought it!” records the purchase and closes the goal out.
Charts
Their total over time, money in versus money out week by week, and where the spending actually went by category — over a month, a quarter, a year, or all of it.
Kids are usually surprised by the treats column. That surprise is the lesson.
Rewards
Thirty-eight badges across six categories, with a weekly streak. Nearly all of them reward holding on to money rather than receiving it.
A whole week without spending. Still having three quarters of everything you were ever given. The $1,000 Thousand Club.
Privacy
Not a promise in a policy — a property of how it’s built. My Piggie Bank contains no networking code at all, so there is nothing to send and nowhere to send it.
Each child gets their own balance, history, goals and rewards behind a profile picker.
Allowance, the bank bonus, the set-aside percentage and account deletion all sit behind four digits.
So a sibling can’t open their account. Stored only as a salted hash — never the digits.
Forgotten codes are recovered with Touch ID or your Mac’s own login password.
Everything lives in one plain-text file you can back up, read, or delete whenever you like.
Weekly allowance pays itself on the day you choose, and catches up correctly if the app was closed.