Scoutbook is an app and online platform where leaders and parents can log in, track and turn in ranks. It's important to note that parents can input completion of ranks, but leaders will go in and approve it. 
While learning one more thing can be daunting, our advancement coordinator Laura has said that once you know how to do it, it's easy! 

Let me know if you think I should record anything else. I was thinking that these might cover what you were looking for.

Laura Willard, Advancement Coordinator