Wen Moon app for Android development has been recently started. As the development progresses, more information will be added here. You can expect the app to be available for closed alpha/beta testing later this year.
Android app features will closely follow iOS version, but there might be some differences due to platform specific features and limitations - and the fact that Android is new platform for the development thus requires a bit more learning compared to iOS. For example, the first versions of Android version may miss augmented reality (AR) features.