[baisq]

I didn't say anything about slow, even though they are indeed slow. All the elements (spacing, sizes, etc) are clearly off.

[411111111111111]

If you're using that as indication for WebViews than you'll be miss-identifying a lot of native apps as well, because that's all set by the developer - both with native apps and with WebViews.

[baisq]

That is just one of the many heuristics that I use.