No specific info about version 8.1. Please visit the main page of SyncMate Expert on Mac Informer.
Sync Mac & Android, iOS, cloud storages, Windows services, MTP & mounted devices
Back up your images, videos, and other files within your online storage.
With this app you can copy and sync your media files with your external drive.
Sync contacts and calendars with your Mac computer.
Missing Sync for Sony PSP - Turn your PSP into killer mobile media.