Multi-currency expense tracking that stays honest
A trip through five countries is five sets of prices, five sets of notes in your pocket and one question at the end: what did that actually cost me? Tasca answers it by recording both numbers, every time.
What you paid
The original amount and currency, exactly as it appeared on the terminal.
What it cost you
The converted amount in your home currency, using the rate that applied that day.
Which rate
The rate itself and its date, stored on the expense so a report you run in December still reflects August.
The keypad already knows where you are
When you start a trip you set a home currency, which is the one you think in, and Tasca works out a spending currency from the country. Open the keypad in Tokyo and it is already on yen. Cross into Korea, change the country on the trip, and it moves to won.
The two are deliberately independent. Paying in US dollars in Cambodia, or euros in a country that does not use them, is normal travel and Tasca does not fight you about it. It will suggest a match, and you can ignore the suggestion without it quietly rewriting your entry.
Rates you can point at
Conversion uses European Central Bank reference rates, fetched through frankfurter.dev. These are published rates, not a spread a company invented, which means the number in your report is one you can defend to an accountant or to the friend you are splitting the trip with.
Rates are cached on your device and refreshed in the background. If the app cannot reach the network, conversion keeps working from the last rates it has, and anything using an old rate is marked as stale rather than presented as current.
- Around 30 major currencies with automatic daily rates
- Any currency at all if you enter the rate yourself
- A rate you set by hand is respected and never overwritten
- Each expense keeps the rate and rate date it was saved with
Cash, cards and the gap between them
Your bank will not give you the ECB rate. It will give you the ECB rate plus a margin, and possibly a fixed fee on top. Tasca lets you handle that in whichever way matches how you travel: log the card charge as it appears on your statement and set a custom rate, or log the local price and accept a small difference for the sake of speed.
For cash, the honest approach is to log the withdrawal itself under fees if your bank charged you, then log each purchase at its local price. You get the local prices for comparison and the fee where it belongs.
Common questions
Which currencies can Tasca convert automatically?
Around 30 major currencies published by the European Central Bank, including USD, EUR, GBP, JPY, AUD, CAD, CHF, CNY, SGD, THB, INR and more. Any other currency can be logged with a rate you enter yourself.
What rate does Tasca use for an expense I add later?
The rate for the date of the expense, not the date you typed it in. Adding Tuesday's dinner on Friday still converts at Tuesday's rate.
Can I change my home currency mid trip?
Yes, in trip settings. Existing expenses keep the original amount they were logged in, so changing the home currency re-reports rather than rewrites your history.
Keep reading
Offline and private
No account, no ads, no trackers. Everything is stored on your iPhone and syncs through your own iCloud.
Daily budget
Set a daily allowance or a trip total. The dashboard answers one question: what can I still spend today?
Export
Claim it back, split it up, or file it. Take the whole trip out in a format your accountant will accept.