well, well, well... look what I found:
While they are not the same company regarding ownership. Apparently AIPER is Winny's (aka Wybot's) number one customer in their business model of doing ODM (Original Design Manufacturing), and this is where Winny (aka Wybot) derives 95% of it's income from designing robots for other companies, and only 5% is derived from manufacture and sales of it's own Wybot sub-brand.
Winny Pool Cleaner (望圆科技), a Tianjin-based firm making robotic pool cleaners, recently updated its prospectus in a bid to list on Shenzhen…
cnrobopedia.medium.com
So, I don't think they manufacture the AIPER models... they definitely designed them... or had a large hand in their design. AIPER must manufacture their own, which accounts for the differences in quality, but also accounts for similarities in their overall appearance and functionality.