The site installs straight from the browser - an icon on your home screen and full-screen launch, with no app store.
Android (Chrome)
- Open the three-dot menu at the top right
- Choose "Add to Home screen"
- Confirm with "Install"
iPhone and iPad (Safari)
- Tap the share button - the square with an upward arrow, in the middle of the bottom bar
- Scroll the list and choose "Add to Home Screen"
- Confirm with "Add" at the top right
Desktop (Chrome and Edge)
- Click the install icon at the right-hand end of the address bar
- Confirm with "Install"