Smart jar budgeting
for modern households
Allocate your income into simple jars, track every dollar, and share one budget with your whole family. Envelope budgeting, reimagined.
Everything your budget needs
Built for the way real households actually spend.
Simple jars
Split your income into jars — Groceries, Gas, Rent, and more. When a jar's empty, you're done spending there.
Built for households
Share one budget with your partner or family and see everyone's spending in one place.
Track every dollar
Log spending in two taps with Quick Spend, and move money between jars when plans change.
Stay on pace
A real-time progress bar shows where you should be in the period — so you never overspend.
Recurring payments
Add rent, utilities, and subscriptions once — HamsterFi budgets them automatically every period.
Flexible periods
Weekly, bi-weekly, or monthly — match your budget to your paychecks. Jars refill automatically.
Start saving your sunflower seeds 🐹
Start in minutes — no account needed. Upgrade to Pro for unlimited jars and family sharing.