All of our PocketBible smartphone and tablet apps (Android, Windows Phone/Store and iOS) have a similar feature you can use to quickly move from one book to the other.
Tap on the title bar in a pane and you’ll get a drop-down list of what you have open in that pane. This works the same way in each pane you have open. From there you can tap on the title of another book in the list to move to it; you may be able to close a book or open another book as well (varies by OS). This simple way of managing books makes it easier to get your panes setup like you want as you study the Bible.
Here is a quick video demonstration of this feature using PocketBible for Android:
On my phone, I like to use two panes and keep my Bibles in one pane and my other type books in the second pane. I also have my apps set to sync books by verse so that my Bibles and commentaries always stay on the same verse. On my iPad, I use tabs for each category of book so I can quickly switch between type of book but when I am in a particular tab, like Bibles, I can use the title bar to quickly switch between my different Bibles.
Questions or tips for other users? Please share in the comments below!