Please open this in Safari. On iPhone, Chrome and other browsers add only a browser
shortcut, not the app. Copy the link, open Safari, paste it, then follow the steps below.
1
In Safari, tap the Share button — the square with an arrow ⬆︎ — at the bottom of the screen (top right on iPad).
2
Scroll down and tap “Add to Home Screen”.
3
If you see “Open as Web App”, keep it ON. Then tap “Add”. The SIP Calculator appears on your home screen and opens full-screen.
Opened from WhatsApp? First tap the Safari compass (or “Open in Safari”), then follow the steps.