too raw to be on the market

OK, it works somehow (at least on watch), but nobody knows how, and even Developers keep silent about it. No documentation, no support.
The iPhone part of it is absolute trash. It can stuck, lost the data or asynchronize with the watch. Graphs are hard to read and I didnt see synch with the Health app.
Thank, that now there is an alternative on the market with the same functions: Pillow (cost is the same)

Max Breader about Zleeper, v1.3