Currencies and exchange rates

Todowl assumes you might not live entirely in one currency. Amounts are stored as you typed them and converted for display, so switching your default currency never rewrites history.

Currency settings live in Finance, in the settings tab, under Currency.

Supported currencies

Twenty currencies are available: US dollar, euro, British pound, Japanese yen, Chinese yuan, Russian ruble, Turkish lira, Brazilian real, Indian rupee, South Korean won, Swiss franc, Canadian dollar, Australian dollar, Mexican peso, Polish zloty, Swedish krona, Norwegian krone, Czech koruna, Thai baht and Indonesian rupiah.

Default currency

Your default currency is the one every total is expressed in unless you say otherwise. Change it and all the summaries recalculate at the current rate. The underlying transactions are untouched.

Secondary currencies

Turn on multi-currency and pick one or more secondary currencies. Each amount then shows its converted value underneath the main figure, in smaller type.

This is the setting that matters if you earn in one currency and live in another: the monthly balance reads in both at once, and you stop doing mental arithmetic that is always slightly wrong.

Where the rates come from

Rates are handled in three steps, in this order:

1. From the server. Todowl stores the most recent rate table for your account and uses it if it is fresh.
2. From a public rate service. If the stored table is stale, the app fetches current rates against the US dollar from open.er-api.com and saves the result back so every device shares it.
3. From a built-in fallback. If neither works, for example because you are offline, the app falls back to a set of rates compiled into the build so the interface keeps rendering rather than showing blanks.

The rate currently in use is shown in the monthly summary panel, so you can always see what your converted totals are based on.

A note on precision

Converted figures are indicative. They use one rate for the whole period rather than the rate on the day of each transaction, which is fine for understanding a month and wrong for filing taxes. If you need exact figures for accounting, take the amounts in their original currency, which is what Todowl stores.