Credit: Kaitlyn Cimino / Android AuthorityTL;DRHeyTap will stop US account services on September 28, raising concerns about OnePlus apps.OnePlus says US accounts are moving to a new platform, with “historical contributions” set to be preserved.Support staff also indicated OHealth and OnePlus account services should not be affected.If you own a OnePlus Watch or OnePlus earbuds, you might have seen a confusing email recently. It came from HeyTap, the Oppo-linked company that develops and supports the OHealth and HeyMelody apps. The email said US account services are shutting down on September 28.That naturally raised a few eyebrows. These apps handle things like syncing health data to pushing firmware updates, so if HeyTap is walking away from US accounts, what happens to the OnePlus app data next? Some Watch owners on Reddit worried they’d be cut off from their health metrics. Others assumed there would be a plan, and this would have little impact on the apps themselves.