Just tried Abstract.
Paul Connoly

Hi Pavel, as I said earlier I haven’t been able to try Plant due to the fact I can’t get an invite (so if you have one, I’ll gladly take it). Just based on your previous explanation, both sounded similar to each other (I can’t agree or disagree either way, as I have only tried Abstract ;] ) — I cannot testify whether 1 option is better or not. Like with many tools, some will work for some teams/people, some won’t. Just like different developers will prefer different text editor or Git client.

At the end of the day, it’s all about improving the workflow and going towards better collaboration. Sketch, as it stands, isn’t enough on its own anymore.