Hello, Joe.

The Reading List is included with any import from Safari into BookMacster.  In the main menu, File > Import from… > Safari.  To keep the Reading List separate, ensure that you have a "Reading List" or "Unfiled Bookmarks" in the Content tab of your BookMacster document.  If you don't, click the tab Settings > Structure and switch on that checkbox.

The instructions for syncing are here:

https://sheepsystems.com/bookmacster/HelpBook/useSync

Our apps cannot sync directly to Safari on iOS or iPadOS.  But they export to Safari in a iCloud-friendly way, so that if in System Preferences / Configuration / Settings in the iCloud section you have switched on Safari on both your Mac and iOS device(s), iCloud will take whatever our apps export to Safari on your Mac and push it to your iOS devices.  It also works in the other direction, for example added bookmarks on an iOS device will be imported into BookMacster.  Just ensure that your iCloud syncing between Safaris is working before entering BookMacster.  BookMacster cannot fix a broken iCloud account.