All three platforms will get you through a first SOC 2 or ISO 27001 audit, and all three have happy customers who say so on G2. The real differences show up later: when you add a second or third framework, when a control drifts between audits, and when your renewal lands and you ask whether the price still buys you actual work. This guide separates what each platform does (from vendor docs) from what it’s like to live with (from customer reviews), so you can pick on fit instead of feature-list length.