Who owes what, settled.
Duesy is a private, on-device ledger for money lent between people. When someone on your tab calls, you see the balance, the note, and the history while the phone is still ringing — and one tap logs the payment.
● Coming soon to Google PlayThe call moment
Know before you pick up
Make Duesy your call-screening app and an incoming call shows your own note for that person — balance, due date, reliability — as a notification or a card over the dialer. Matching happens on your phone; nothing is uploaded, and no call is ever blocked.
Honest limits
Lend on your own terms
Set a limit per person and a cap on everything out. Duesy warns at the exact moment you're about to lend past them — and never blocks unless you tell it to.
Kept accurate
A ledger that keeps up
Log payments from the home widget, a shared Venmo screenshot, or a quick "did it go through?" check when you come back from a payment app. Stale balances get a gentle nudge to confirm or fix.
Private by design
No account. No server.
Everything is encrypted on your device. Backups need a passphrase only you know; updates to friends travel directly, signed, through apps you already use. On the lock screen, amounts stay hidden until you unlock.