Again, have you ever in your life wanted to buy a product from Amazon but then didn’t because of their app size? If not, as far as Amazon is concerned you don’t care about the app size in any meaningful way.

even if they buy less because of the bloated app, you're still balancing dev resources against profit margins. It might just not be worth the effort for that extra tiny bit of revenue the app will generate by being small.

But that's my point about scale: if the revenue-vs-developer-time tradeoff makes it worth it for any company to make a good app, it will be worth it for Amazon. They are so huge that a 0.01% increase in sales translates to many millions of dollars per year.

Everything else they do also scales though. Not proportionally to each other, but I wouldn't be surprised if putting their devs on, say, better product recommendations is much more revenue than app size.

Then they should hire more devs.

Again, the cost is likely not be worth it.

It would also be foolish to think we know the answers of how to make amazon more money from our comfy arm chairs.

The push to get everyone on the company app will be less so. Why they want everyone on the app I don't understand but whatever those reasons are they won't benefit from it