I have used Foldersync app for a long time, but that app seems to be dead now. At least there is no development since a long time and the bugs are not fixed. Than there was Synchronize Ultimate, but there are also unfixed bugs and currently (since Android Pie) it drains the battery, syncing isn't scheduled and much more. Now that app is pulled from the Google PlayStore completely.
So i wonder if someone here now a good replacement? I need scheduled syncing of some folders, if the phone is on a dedicated WiFi SSID and power is connected. Sync protocol should be SFTP or at least WebDAV. It must be no free app, but it should be stable.