I did a quick search on the HubSpot App Marketplace and there were no results for a Datasynze integration. I would recommend reaching out to the Datasynze team since they built and support this integration as mentioned in this community post. The Datsynze team should be able to provide some more context on the state of this integration and if there are alternatives.
@WLagae Datanyze does not offer any integrations according to their website. In my opinion, there are several excellent alternatives available to you for contact data enrichment and list building that have HubSpot integrations.