Common ProblemsI log into the app and see "please check newer version of the app", but there's not an update in the app store.
We are currently working on a new version of the Companion App to make it compatible with our Pre-Patch and Shadowlands going forward. Please keep checking back for updates and keep an eye on this thread: https://us.forums.blizzard.com/en/wow/t/update-the-mobile-app/676057/13
If you see updates are available, but seem unable to get them, uninstall the current app and install the most recent version for Shadowlands. Please make sure minimal system requirements are met: https://support.blizzard.com/article/000085524