I'm struggling to remember the name, but there was a company that sold a TDCS machine marketed as a game performance enhancement device. It only did one montage

I'm struggling to remember the name, but there was a company that sold a TDCS machine marketed as a game performance enhancement device. It only did one montage and was ridiculously unsafe. It used to leave red marks under the sponges on my forehead. Eventually, the app that controlled it aged out of the app store.