My app "Butter Picks" is showing up in the left-hand-side bookmarks in the regular Facebook web view, but it does not show up in the bookmarks on my iPhone. I've surveyed all the relevant documentation and can't find any setting that needs to be changed. If I use the search within FB iPhone app to find "Butter Picks" I can find the app and use it as expected.
Any ideas?
As Igy pointed out in a comment, bookmarks are only shown for native apps inside the Facebook iPhone app. The mobile site should have a bookmark for any mobile app.