“While some of the findings presented in the paper may be interesting from a theoretical standpoint, none of them ever had any considerable real-world impact. Most assume extensive and unrealistic prerequisites that would have far greater consequences than the respective finding itself.” - Threema.
Paid unfortunately also means that it’s way harder to convince anyone to use it, even though the price seems very low for what you get. The other problem that brings is that I don’t know what I’m buying exactly until I bought it.
Paid means you’re more likely a customer than the product.
I can’t verify the security claims either way, but this article is a counter point to the one one linked: https://www.bleepingcomputer.com/news/security/threema-claims-encryption-flaws-never-had-a-real-world-impact/
Paid unfortunately also means that it’s way harder to convince anyone to use it, even though the price seems very low for what you get. The other problem that brings is that I don’t know what I’m buying exactly until I bought it.