Been using the app most of the day. As of 20 minutes ago the app will not open. Read other comments for iPhone 8+ to uninstall and reinstall. Did that and it still closes after opening. I have 7+. It would be awesome to know when it will come back up I miss my books. 😔
iPhone 7 with iOS 10.3.3 is having the same problem, so it's not just iOS 11. App starts, shows books for a second, then crashes back to desktop. This is new, but app has been getting slower for some time.
Tried restarting phone, uninstalling and redownloading app. Still crashes.