class, and `Navigator` re-implements that functionality entirely in
JavaScript as a React component. A corollary of this is that `Navigator`
will be compatible with Android and iOS, whereas `NavigatorIOS` will
only work on the one platform. Below is an itemized list of differences
between the two.
## Navigator
- Extensive API makes it completely customizable from JavaScript.
- Under active development from the React Native team.
- Written in JavaScript.
- Works on iOS and Android.
- Includes a simple navigation bar component similar to the default `NavigatorIOS` bar: `Navigator.NavigationBar`, and another with breadcrumbs called `Navigator.BreadcrumbNavigationBar`. See the UIExplorer demo to try them out and see how to use them.
- Currently animations are good and improving, but they are still less refined than Apple's, which you get from `NavigatorIOS`.
- You can provide your own navigation bar by passing it through the `navigationBar` prop.
## NavigatorIOS
- Small, limited API makes it much less customizable than `Navigator` in its current form.
- Development belongs to open-source community - not used by the React Native team on their apps.
- A result of this is that there is currently a backlog of unresolved bugs, nobody who uses this has stepped up to take ownership for it yet.
- You may find an alternative in the community project [react-native-navigation](https://github.com/wix/react-native-navigation) which replaces `NavigatorIOS`.
- Includes a navigation bar by default; this navigation bar is not a React Native view component and the style can only be slightly modified.
For most non-trivial apps, you will want to use `Navigator` - it won't be long before you run into issues when trying to do anything complex with `NavigatorIOS`.