If you mean easily transferring files from S3D to Octoprint....
1. You can save to disk from S3D, then bring up an Octoprint browser window and "drag-n-drop" the file into Octoprint. OR
2. You can setup SAMBA on your Octoprint host, share Octoprint's "watched" folder, and map that folder as a disk on your computer. Then "save" from S3D directly to that mapped network drive (Octoprint sees the file, and processes it into Octoprint's file list). OR
3. You can use a CURL command (if your computer has CURL) as an S3D post-processing command to transfer the sliced file.
All of those methods (and more) are discussed in the following thread:
However... If you mean not only transfer files, but control the printer (like jogging, setting temp, etc), monitor status during print, and see webcam -- like you can with the plugin for that free-open-source-alternative-app -- there isn't any way to do that with S3D right now.
I personally use the SAMBA method.... That works really well for file transfer. S3D "remembers" the last save location, so the "Save Toolpaths to Disk" dialog defaults to the shared drive and all I have to do is click "save". Then I control/monitor the printer via Octoprint, either in web browser or iphone app.