Can't figure how to sync with Android

I'm using this software for months. Last week I bought Home version to have it also on Android and to sync it with Android.

So far everything ok, but can't find a way how to sync it with Android. If I start fresh on Android it give me a sync window, but nothing happened. So I press skip and went on empty version. After I press sync it make a directory and file on my iCloud. But when I replaced this file with a file from my pc - nothing happened. So I press sync again on Android and it made another file with the same name on iCloud.

I know it should not be a rocket science, but it doesn't work. Also if I press Sync with android on help page I got 404 error.

Please help,

Thanks in advance.

Alex