Also, I'd say referring to that app (however problematic it was, and I agree they did a terrible job building and deploying it) as a "vote manipulation app" is unnecessarily inflammatory.
> distributed via a test platform with the financial backing of former Clinton and Obama / recent Pete Buttigieg staffers This implies that TestFlight has financial backing from those groups. Maybe that's just unclear wording, but interpreted as written the claim is unsupported by the provided source.
Assuming you meant to say the Iowa caucus app was supported by those former staffers, it should be clarified that the company who made the app also provided services to those campaigns. I wouldn't consider Shadow Inc. to be competent as a technology company, but it doesn't surprise me that Democrats would buy political tech from a company founded by people who worked on digital outreach for the most recent Democratic presidential campaign.