What is the difference between ISO and soc2?

The only difference in this process is who conducts the audit. A recognised ISO 27001-accredited certification body must complete ISO 27001 certification. In contrast, a SOC 2 attestation report can only be performed by a licensed CPA (Certified Public Accountant)

I've had it explained to me that ISO is of more interest in Europe and SOC2 is of more interest in the United States (and maybe North America?). Someone once said "ISO is to SOC2 as the metric system is to the imperial system"