Install & offline help
iPhone: Open in Safari, then Share → Add to Home Screen.
Android: Open in Chrome, then choose Install app or Add to Home screen.
Wait for “Offline ready”, then test airplane mode: close and reopen the app. Check again shortly before your event; browsers can clear stored data. Enable automatic date and time on your device.
Updates are applied only when you choose to load a prepared release. Close other open copies of this app first.