The Battle.net Mobile App requires at least Android® 5.0 or iOS® 13.0.
The Battle.net Deskop App can't be launched due to an operating system error.
Troubleshooting steps to help you connect to the Battle.net desktop app.
How to report harassment taking place within Battle.net chat (mobile or desktop)
Troubleshooting steps for news and ads not appearing in the Battle.net App.