Your money, in a notebook that syncs.
My Passbook is an offline-first personal ledger for your phone. It feels like a paper passbook, works with no connection, and quietly backs itself up the moment you add an account.
Google Play — coming soon
Already installed? Open the app on your phone.
What it does
Works offline, always
Every entry is saved to your phone first. On a plane, in a basement, on patchy data — the ledger stays fully usable and syncs when you reconnect.
No sign-up wall
Open the app and start recording. Nothing to register. Add an email later, only if you want a cloud backup and sync across devices.
Accounts and transfers
Keep cash, bank, and card balances separate. Move money between them with transfers that never distort your income or expense totals.
Debts and IOUs
Track money friends owe you and money you owe, with partial repayments over time. It moves the right account balance without ever counting as income or expense.
Budgets and reports
Set monthly category caps and see where the month is heading — trends, category breakdowns, and income-vs-expense flow over any date range.
Private by design
No ads. No third-party trackers. Guest data never leaves your device; a synced account is protected by per-user row-level security. Optional biometric lock.