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What's the issue? You already listed Spike and Hop, which I believe are the best examples. Delta Chat also merits mention. They're all great UIs that can do IM

What's the issue? You already listed Spike and Hop, which I believe are the best examples. Delta Chat also merits mention. They're all great UIs that can do IM and use email as the backend. I think the main downside to the approach is that there are so many messaging apps out there, there isn't a clear use case for an email based one, besides a technical one. It is nice to be able to send one liners to team members and clients, but it's something that Slack and all other collaboration apps accomplish. What do you think is missing?

i5heu 6y ago
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.