During the end of my usage of V7, my iPad started giving me trouble with Logos Bible. I've been running it daily for several years. The iPad is probably 3 years old. 
So I uninstalled it. Thinking a fresh install might help.
Then I kept dreaming of updating to V8. (good acronym).
Now when I try to install V8 on my iPad i get a message
Unable to purchase
"Logos Bible Study Tools" is not compatible with this iPad"
Can this be true? Can it be fixed?