A feature available to 13.4% of mobile phone population across the world.

The iPhone is available in almost all of the world. Whether they choose to buy one is a different story.

But as far as “availability”, how many people have high end Android phones with decent GPUs for “with WebGL 2.0, and proper use of hardware accelerated CSS”? Most Android phones sold are low end with crappy hardware.

More than those that can afford iDevices.

I target devices that customers actually have, not what they might have on local store windows.

The average selling price of an Android phone is $250. How many of those have decent GPUs or perform well enough to run web apps as well as native apps?

Ironically, iPhones do better on web benchmarks than almost any Android phone.

Plenty, if one doesn't bomb them with SPAs to draw static text.

That may be true, but you specifically said....

Web apps:

- Fast with WebGL 2.0, and proper use of hardware accelerated CSS

- Limited access is actually a positive

- WebAssembly

None of that is going run well on the average low end Android phone.