To use the OnlyGamers app, all you need to do is set the website as your home screen!
Launch Chrome app.
Open the website or web page you want to pin to your home screen.
Tap the menu icon (3 dots in upper right-hand corner) and tap Add to homescreen.
You'll be able to enter a name for the shortcut and then Chrome will add it to your home screen.
Launch Safari on your iPhone or iPad.
Navigate to the site that you want to create a Home screen shortcut to.
Tap the Share icon (the square with an arrow pointing out of it) at the bottom of the screen.
Scroll down to the list of actions and tap Add to Home Screen.(If you don't see the action, scroll to the bottom and tap Edit Actions, then tap Addnext to the Add to Home Screen action. After that, you'll be able to select it from the Share Sheet.)