Compares today's rate with the last 7 days, 1 month and 1 year (worked out from daily rates when you're online, a saved snapshot when you're not). It can't predict the future, and it's not financial advice.
π± Put me on your iPhone
Open this page in Safari (the blue compass).
Tap the Share button (square with an arrow up).
Scroll down, tap Add to Home Screen.
Tap Add. Done.
Midβmarket rate. Banks and cards add a margin, so you'll get a little less in real life.