That's definitely the impression those apps were going for, but the wording is careful on most of them. They're not technically saying you'll get 4 more GB of ram, just that the app can clean up some of the 4 GB of ram. They're awful, but it's not clear to me that they're violating a rule.
And that's precisely why Smart Contracts and other types of automated moderation are doomed to fail. There will always be loopholes in the letter of the law to exploit, which requires people able to enforce the spirit of the law instead.