Mail app badge count not updating on IOS

TORBJORN.GJERDE,

Thanks for the reply. Yes, that is correct. From the Check Mail Fetch and Notification settings section of the article above: "Your device will fetch new data in the background only when your device is charging and connected to Wi-Fi".

If you'd like to submit feedback on the Mail app, that can be done here: Product Feedback. You can also reach out to Apple Support directly at this link: Get Support, or by calling the most applicable phone number listed here: Contact Apple for support and service.

All the best!

Hi there TORBJORN.GJERDE,

Welcome to the Apple Support Communities. We understand that the Mail app isn't syncing between devices as you expect, so we'd like to see how we can help. When you go to Settings > Notifications > Mail > Accounts > Fetch New Data, on your iOS devices, what is Fetch set to? If Automatically is selected, your devices will fetch new data in the background only when charging and connected to Wi-Fi. If Manually is selected, the badge won't update unless you open the Mail app. Although the title of this article doesn't reflect the behavior you've described, it includes information on checking your Mail Fetch and notification settings: If you can't receive email on your iPhone, iPad, or iPod touch.

Cheers!