Yep; just did it on my Minibits install

The App Store guidelines have changed quite a bit since I last looked at them closely. Ultimately it doesn’t matter what the guidelines say but how Apple enforces them. Glad to hear it’s not a problem. Maybe it’s okay since it’s probably JavaScript executing from WebKit. Here is a snippet of the guidelines I thought would be a problem.

We'll see but OTA updates are quite common in react native apps. May be they enforce for changing native code only.