There are almost all casinos which has the android and iOS applications. I’m not sure why you need them despite the fact that it’s handy and you can play right from your phone. However, that’s not a big deal these days. Almost every website irrespective of its niche has mobile view or adaptive interface. This gives you similar feel as if you are playing on the android or ios app.
However, I would suggest if you wanna play casinos then it’s better be on the full screen over your laptop or desktop. Playing slots on phone is like a joke for me. The gambling site experience is far better over big screens mate.
From the ops comment I think he is a newbie that have just got into gambling and is looking to something that he can quickly access as an app, otherwise this will amount to a waste of time because it looks like ops are never going to get a good experience from apps since most apps don't function accurately at all time and sometimes there need regular updates.
A good number of gambling platforms have their apps but in some cases, those casinos that care more about their freedom and less spending will not develop an app.
While our smartphones are essentially mini-computers that can do almost everything, some experiences are just better on a bigger screen. That being said, we cannot dismiss the convenience that mobile apps provide.
Casino apps are primarily about accessibility and mobility, providing users the ability to play 'on-the-go'. But you're absolutely right, in my experience, the mobile versions sometimes lack the full functionality or immersive experience that their desktop counterparts offer. Not to mention the constant need for updates which can be a real deal!
Casinos that prioritize user experience often invest in developing responsive websites, ensuring that their interface is smooth irrespective of the device. As for casinos not developing an app, it's a business strategy - they might simply choose to invest their resources elsewhere. Yet, let's not forget, there's an audience that appreciates the benefits of both worlds, and catering to them might not be a futile endeavor!
