From the Archigrafix website:
Don’t lose your work.
iSync Pro improves teamwork collaboration and saves your work. iSync Pro automatically relinquish locked objects and saves when you are away.
iSync Pro is brought to you by Archigrafix. It’s priced at 49.90 USD.
This add-in is compatible with Revit 2017 and 2016.
There’s more information available on the Archigrafix website.
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