At the time of this comment (edit: since this comment, they addressed this, check the replies), on your pricing page you have "SOC 2 Type II Security Compliance" not being checked off on the free tier but it's checked in the others. The same thing applies to "HIPAA Compliant and BAA" except this isn't enabled for free and pro plans.
What makes the free tier different here? Are you storing free data in a different area with many less restrictions on who has access to it? How do I know what I upload is safe from being analyzed or sold? Are you using this data to train any data models but only in the free / pro tiers that aren't SOC 2 or HIPAA compliant?