Add ChartQuest to your phone
On iPhone & iPad, in Safari:
1Tap the Share button (square with an arrow).
2Scroll and tap Add to Home Screen.
3Tap Add — ChartQuest now lives on your home screen.
On Android, in Chrome:
1Tap the ⋮ menu (top-right).
2Tap Install app / Add to Home screen.
3Confirm — it installs like any app.