iOS bookmark showing favicon instead of apple-touch-icon

Can someone tell me more about how iOS prioritizes bookmark icon display and if it's possible to show an icon that's different than the favicon? Thanks

When submitting a apple-touch-icon to iOS Safari, it is using this icon for both home screen shortcut and bookmark. More precisely, when running RealFaviconGenerator's favicon compatibility test, iOS Safari 9 is using the 180x180 Touch icon in both cases.

What to do with your particular issue:

• Bookmark your site again. Like several browsers, iOS Safari does not always take the icon (or the right icon) immediately. Simply repeating the procedure might auto-magically fix the issue.
• Change your favicon code and images to look like ones of RealFaviconGenerator. An easy shot would be to make your Touch icon a 180x180 image, if this is not already the case.

Full disclosure: I'm the author of this service.