I was skeptical of this software but after using it to refresh, sanitize, and monitor the health of my ten various ProGrade cards I’m no longer critical. It works flawlessly on my older, Intel MacBook Pro and a newer M1 Apple product. The interface is simple and clean. And it does what it advertises it does. My camera stopped experiencing read errors on two of my SD cards after having them sanitized. Best of all, no, subscription fees. Omg thank you ProGrade for not jumping on that bandwagon. Plus having a *six month* trial period made this $10 a joy to spend.
The store experience was a little rough at first and the store did not email me my key, only a receipt. However an email to their support folks had it sorted and a key mailed back to me within a couple hours which was amazing. So very pleased I’ve made the move from other SD card companies to ProGrade. They’re all I use in my three cameras and one personal.