Maybe read the system requirements and you will be a little more educated...
It only requires IOS 14.3 which iphone 6s etc are all acceptable which you cannot buy a 6s new given they are discontiuned but a refurb one goes for less than $200. The iPhone 6S was released in Sept 2015 so I would assume the majority of active Iphone users are able to use cloud.gg.
However in a lot of the developing country is Android so lets look at the system requirements there...
Which just requires Android 5.0 (L) or later and the very first phone to support Android 5.0 (L) was the Google Nexus 6 which was first released in November 2014 - so we can safely assume the vast majority of android phones in use today are able to run cloud.gg given we are looking at 7.5 years since it was released.
which is about $130
To be honest for the few people that don't have a compatible device it is highly unlikely they are going to be able to afford a cloud gaming streaming service given the very limited funds they would have as they are running on outdated phone technology to begin with IMO.
