Yet more signals suggest Apple may be preparing to open hitherto closed elements of its ecosystem: both Google and Mozilla are working on iOS web browsers that don’t use WebKit, Apple’s rendering engine.
Mozilla and Google seem to be prepping
Mozilla’s GitHub repository now contains code for Firefox on iOS that uses the company’s own Gecko rendering engine rather than WebKit. And Google’s Chromium team is building an iOS browser that uses its own Blink code for rendering. This is significant, since Apple insists all iOS browsers use its own rendering engine.