Takes about 20 seconds. No App Store, no password needed to install.
Go to waios.tools (or playbook.waios.tools) in the Safari browser.
At the bottom of Safari, tap Share — the square with an arrow pointing up.
In the menu that slides up, scroll down and tap Add to Home Screen.
Confirm the name, then tap Add in the top-right corner.
The icon is now on your home screen. Tap it to open the app full-screen, then sign in with your Willie's account.
Android/Chrome: tap the ⋮ menu, then Install app or Add to Home screen.
Willie's Grill & Icehouse · WAIOS