Tabi Saifu is a free expense tracker for trips where you carry several wallets and several currencies. Nothing to install: open it in your browser, add it to your home screen, and it works even without a connection.
See how much of each currency is left in each wallet
Record exchanges and keep the real rate you got
Separate cash, card and in-app payments
Spending by category, by day and by country
Automatic conversion to your home currency (rates updated daily)
Records stay on your device. No sign-up, no login
FAQ
Is it free?
Yes, every feature is free.
Does it work offline?
Open it once and add it to your home screen; after that it starts and records without a connection.
Where are my records stored?
Only on your device. You can export a backup file and move it to another device.