Install OohSleep using Samsung browser
Make sure you're viewing OohSleep in Samsung Internet browser. It comes pre-installed on Samsung Galaxy devices and has excellent PWA support.
Look for the three horizontal lines (☰) or three dots at the bottom right of the browser. Tap on it to open the menu.
Look for "Add page to" or "Install" option in the menu. Tap on it to see more options.
Select "Home screen" from the submenu. A dialog will appear showing the app name and icon.
Tap "Add" to confirm. Find the OohSleep icon on your home screen and tap it to launch the app!
Tip: Samsung Internet often shows an "Add to Home screen" banner automatically. If you see it, just tap to install directly!