Kendos-Kenlen

I had a chat with some of their product team. Both Upsource and Space failed to get enough market traction to justify the continuous investment. Same with Code With Me.

On Space case, I think they felt it became too complex to maintain internally while other great alternatives were very hard to compete against.

They were sad about it, as they really worked hard on these products, but it's also easy to understand why they make the decision. Despite the tools being nice, if nobody buy them, it's just a loss.

It is. And I think SwiftUI will only push people toward Anko as this kind of libraries/tools will become popular. Also, some concurrence with make both tools even better. That's great news!