Is there a bookmark feature in the iPad app? I will read a resource and then when I close it and come back to it later it opens up to the beginning of the resource.
Yes, called "favorites." Swipe up to add one... Press the star and navigate to "mobile favorites" to get to them.
The resource SHOULD open to where you left off... But the rules get a bit tricky across devices. Do you use Logos on any other device?
Yes, I have it on my home computer as well
If you have book A open on your iPad and never close it (the book, not the app), it should always open back up to the same spot. If you close the book, it should open back up to the same spot unless you open the book up on another device. This includes opening a layout on your computer with the book already open.