It's very sad to see this happen, all things considered.
reddit might not be what it was when I first joined it, but I spent many years there and had a good time. I mostly used RIF on Android, but for a while last year I had an iPhone (a gift) and used Apollo. It was the closest thing to RIF in the App Store.
If you're on iOS and want to help him, he also has this app that he'll depend on from now on: https://apps.apple.com/app/apple-store/id6443919232