[fragmede]

The EU passed laws to force Apple to allow other browser engines to run. Previously, all iOS browsers were reskinned WebKit by Apple decree.

[ulfw]

And is there any other browser engine actually running on iOS anywhere?

[lern_too_spel]

There are several under development. Microsoft recently claimed their Blink-based prototype is almost 30% faster than iOS Safari.

[ulfw]

Getting downvoted but no answer. So Hackernews