Public information shows that Harbor was the first company incubated by Craft Ventures to launch as a live product, and Callin was the next.

• Harbor as first incubation to launch: Multiple 2018 articles on Harbor’s Series A note that it "was previously incubated by Craft Ventures" and had just launched its blockchain compliance platform in early February 2018, clearly establishing it as a Craft incubation that reached market. (prweb.com)
• Callin as a Craft-incubated company and its launch date: Press releases and funding coverage explicitly state that Callin "was also incubated at Craft" and that the co-founders "announced the launch of Callin" on September 2, 2021, when the app became publicly available on the Apple App Store and came out of beta. (prnewswire.com)
• Later Craft incubations came after Callin: Subsequent incubations are dated later. SaaSGrid is described as having been "incubated at Craft Ventures in 2023," and Glue is reported as a startup that Craft Ventures incubated and used internally before offering it publicly starting May 14, 2024. (capterra.com) A TechCrunch piece summarizing Sacks’ incubations cites Callin and then SaaSGrid as prior examples, reinforcing that these came after Harbor and that Callin is treated as an early Craft incubation. (techcrunch.com)
• No evidence of another Craft incubation launching in between: Searches for other companies explicitly described as “incubated by” or “incubated at” Craft Ventures only turn up Harbor, Callin, SaaSGrid, and Glue; there is no public record of any other Craft-incubated startup launching between Harbor (2018) and Callin (Sept 2021). A founder interview also characterizes SaaSGrid as a later, largely unintentional incubation, consistent with Harbor and Callin being the earlier, intentional ones. (frontlines.io)

Given this evidence, the ordering of Craft incubations that actually launched is Harbor first, then Callin, with SaaSGrid and Glue only appearing later. That matches Friedberg’s prediction that Callin would be the second Craft incubation to launch after Harbor.