Worth it:
- Trail Wallet: purpose-built for tracking spend across currencies and trips. The reports show exactly where the money went.
- Splitwise: not a tracker, but it keeps housemate debts honest, which is half the battle.
- MoveReady: $9.99 one-time unlock. City-specific budget targets plus actuals, so you see the drift before the overdraft.

Not worth it:
- Generic bank apps: they categorize "Tesco" as groceries and "Tesco petrol" as groceries too. Useless granularity. - Anything with a subscription over 5 USD/month for students. Your tracking app should not need its own budget line. Sources: Numbeo Cost of Living Track for the first 90 days. That is when spending patterns set. After that, you know your numbers and the app becomes a receipt drawer.