What is PiggySize?

PiggySize is a personal-finance and retirement-planning app for US households. You track your income, bills, assets, and debts by typing the numbers in yourself — there's no bank account to link, ever. The app turns those numbers into a net worth summary, a monthly cash-flow picture, and — on the paid Pro plan — a full retirement projection.

How it works

• You enter your financial life by hand. Income sources, recurring bills, assets (checking, savings, investments, your home, and more), and debts (credit cards, loans, mortgages) — all typed in, not imported.
• PiggySize does the math. Your net worth (what you own minus what you owe), how much money is left over each month after bills, and how your finances are trending over time.
• Nothing updates on its own. What you see is only as current as the last time you or a family member entered a number — there's no bank sync running in the background.
• It's a planning tool, not a transaction tracker. PiggySize doesn't import or categorize your purchases line by line. It works with totals you enter, like "Rent: $1,800/month," not a running list of every purchase.
• It installs like an app, without an app store. PiggySize is a web app you can add to your phone's or computer's home screen from any browser.

A worked example

Say a household enters:

• Income: $6,200/month combined take-home pay
• Bills: $4,100/month (rent, insurance, subscriptions, and more)
• Assets: $18,500 in savings and investments, plus a $2,000 car
• Debts: $6,000 in credit card and auto loan balances

PiggySize shows this household has about $2,100 left over each month, and a net worth of $14,500 ($20,500 in assets minus $6,000 in debts). If they upgrade to Pro, those same numbers also feed a retirement projection that shows whether they're on track, month by month, into their 90s.

Assumptions and limits

• Only as accurate as what you type in. If you forget to update a balance, PiggySize doesn't know it changed.
• No transaction history. Since there's no bank feed, PiggySize can't show a spending breakdown by merchant — only by the bills and categories you set up yourself.
• Built for the US. Sign-up is limited to the US, and every figure is in US dollars.
• Some features are Pro-only. Retirement projections, tracking a side business, and the AI assistant require a Pro plan. Everything else described here — including goals, scenarios, snapshots, and family sharing — is free.