Three things separate "open it in a browser" from "add it to a device."
First, one tap from the home screen. No more typing in a URL each time. When a child wants to see the clock, it's right there.
Second, it launches full-screen. Address bar and tabs disappear; the clock fills the screen. Good for propping up an old tablet as a wall clock.
Third, it works offline. Once it's added, it still tells the time in a car with no Wi-Fi or signal.
Open the app from the "Open app" button at the top right of the page. Then, tap the Share button ( ). On iPhone, it sits inside the menu that opens from ( ) at the bottom-right of the screen. On iPad, it's right next to the address bar at the top. Scroll the menu down, choose "Add to Home Screen", and tap Add to confirm.
An icon for Futatoki the Learning Clock App appears on the home screen. Tap it, and the app opens full-screen — not inside Safari.
Note: on iPhone and iPad, Safari is the most reliable way to install. Other browsers like Chrome can save it to the home screen, but it won't run full-screen or offline.
Open the app from the "Open app" button at the top right of the page. The first time, you may see a prompt near the address bar offering to "Install" or "Add to home screen" — tap it and you're done.
If the prompt didn't appear or you dismissed it, open the menu ( ) in the top-right corner and choose "Add to home screen" or "Install app".
After that, the home-screen icon launches the app full-screen, without going through Chrome.
Open the app from the "Open app" button at the top right of the page. An install icon appears at the right end of the address bar ( or ). Click it and choose Install.
Once installed, you can launch it from your desktop shortcut or app launcher. It opens in its own window — no tabs, no address bar, just the clock.
Safari on macOS Sonoma (14) and later can add a website to the Mac's Dock. Open the app from the "Open app" button at the top right of the page. Then, choose File → Add to Dock from the menu bar.
Launching from the Dock opens it in its own window, separate from Safari.
Note: on macOS versions earlier than Sonoma, Safari doesn't support this. Use Chrome or Edge instead.
On any device, once it's added, it behaves like any other app. In a car with no Wi-Fi, when a child wants to check the clock, it's right there.
If there's an old phone or tablet sleeping in a drawer, give it a second life as a Futatoki wall clock.
