Regarding the issue of progress synchronization between Android and iOS: the system prioritizes the iOS progress when syncing with Android. For example, suppose I read up to "Sep 11" on Android—marking my progress at that date—but my iPad still shows "Sep 10." When I open the app on my iPad, it automatically syncs, but instead of updating to "Sep 11," it reverts to "Sep 10." In short, the app prioritizes the iPad's progress, overwriting the progress recorded on the Android device. My device is android 16 Xiaomi 13T pro and iPadOS 26.6.2 iPad Air 4th.