What difference does paying a couple bucks for threema make? It's leaps and bounds above whatsapp and the turn around they did concerning your privacy. Then again, it wouldn't surprise me that you're ok with that.
So I paid a few bucks for threema. I guess that makes ProtonMail and the pro account I pay for trash right?
Telegram? I can't even get their support to answer my emails or tweets in regards to me not being able to register. Staying silent when a user requests help does not sit well with me at all. That along with the fact that telegram chats aren't secret by default is also a killer.