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You should be surprised how many people there are in developing countries, like mine, how have a quite good phone with android and yet, they don't know what an apk is and don't know how to install applications
from outside of the official stores, which is fairly easy.
Well, this changes a bit, if the app can't be directly installed from googleplay then yeah, the roundabout would indeed turn off a lot of people, but I never assumed that was the case!
No idea how this Gcash works, how do you load it without a bank account, does it work like paysafecard that you can buy codes from vending machines?
You can load it through local store or agent. The store/agent will sent the balance on your account then you will pay in cash.
It’s like online bank transfer. It’s just more convenient since many people doing business on it by charging fees on each transfer. Both cash in or cash out to fiat is supported.
I can already see those agents charge a small fee to set you up with a casino account.
But yeah, it's not really that different than what we have here in some parts of Europe where you can simply go to an automated teller machine, buy a 16 digit code for a gambling site and just insert that in your account or pay with an intermediary PSC.