Question 1

Where do the rates come from, and how often do they change?

Accepted Answer

From the free exchange-api project, which publishes market rates for every currency once a day, with Frankfurter as a backup. The page shows the date of the rates it uses and saves them on this device, so it also works offline with the last rates.

Question 2

Is the amount I type sent anywhere?

Accepted Answer

No. Only the day’s rate table is downloaded; the conversion happens on your device.

Question 3

Why does my bank give me less?

Accepted Answer

Banks, cards and exchange counters add a margin of about 2–4% to the market rate. Type it under “Bank or card markup”, or tick “Use my own rate” and enter the rate you were quoted.

Currency converter

How to use it