It looks like Hop is now Spike. I didn't know Delta Chat, it looks promising, i will try it out! > What do you think is missing? The interoperability, the fre

It looks like Hop is now Spike. I didn't know Delta Chat, it looks promising, i will try it out! > What do you think is missing? The interoperability, the freedom of not be owned by a company. And, at least in Germany, all people have 3 messaging types - SMS, Email and WhatsApp. And i don't want to use a Facebook product. So the only other possible way to communicate with all other people is E-Mail. SMS is no option since its 0.09€ per send SMS.