https://www.kaiostech.com/technical-details/
Kai OS is going to be the world’s third largest mobile operating system. Chances are, you haven’t heard of it.
Not your fault really. KaiOS was only released in 2017 and yet it is powering a huge number of mobile phones in just under two years.
So, what’s the secret here? Unlike other mobile operating system, Kai OS doesn’t target the high-end, touch phones. Instead, it provides smartphones like functionalities to the featured phones.
2019 Exhibitors
KaiOS Technologies,Inc.
Stand Location
Hall 5 Stand 5G81, Hall 4 Stand 4F5Ex
i’m sure Richard will go check them out, chat app development options. 
