Money on a trip
A card in one currency, cash in another. Keep separate accounts and record purchases as you go.
Travel costs can easily get mixed up with everyday expenses. Separate accounts and categories keep the context of a purchase and its currency clear.
Add accounts in the currencies you use for cards and cash.
Record each expense against the right account and add a note.
After the trip, review transactions and spending by category.
Keep a clear record of where, how and in which currency you spent your money.

For iPhone and Mac
Add your first account, record a purchase or plan a budget. Pick it up on iPhone or Mac whenever it suits you.