[zenlibs]

Worth noting that JSC on iOS for use in app-backend/business-logic code runs in interpreted mode [1].

Are Android versions of RN apps faster because Android's native V8 allows JIT, and Hermes also employs JIT?

[1]: https://stackoverflow.com/questions/45422462/what-does-jit-i...

[saghul]

RN on Android also uses JSC, so no JIT. And, and per the video (https://www.youtube.com/watch?v=zEjqDWqeDdg&feature=youtu.be...) there is no JIT on Hermes either.

[sahrens2012]

JSC on Android can use JIT, but some choose to disable it because it uses more memory than it’s worth.