Same issue: 1st gen 12.9“ iPad Pro on iOS 11.0 public beta. Crashes immediately after startup the very moment the „Evernote has unexpectely quit“ pop-up appears.
I have tried the following:
1. Close app and restart: Does not solve problem
2. Remove app and reinstall: Seemed to have solved the problem for a while
3. Set all notebooks to offline and let Evernote synchronize for an hour or so: Evernote crashes again