Spliteet installs straight from the browser — no app store, no account. Once it's on your home screen it opens full screen and works with no connection at all.
safari only — iOS blocks this in other browsers
Open Spliteet in Safari.
Tap the Share button — the square with an arrow pointing up.
Bottom centre of the screen, or in the address bar on iPad.
Scroll down the share sheet and tap Add to Home Screen.
Tap Add, top right. The icon lands on your home screen.
chrome, edge, or any chromium browser
Open Spliteet in Chrome.
Tap the three-dot menu, top right.
Tap Add to Home screen, then Install.
Chrome often shows an Install button in the address bar instead — that does the same thing.
It opens standalone from then on, with no browser chrome.