If you develop for iOS|macOS professionally, you may be interested in Jetbrains' AppCode [0].
Note: I'm not connected in any way to Jetbrains, and I have not used AppCode myself, but I used other tools from them, and they're quite competent, I'd say.
Note: I'm not connected in any way to Jetbrains, and I have not used AppCode myself, but I used other tools from them, and they're quite competent, I'd say.
[0]: https://www.jetbrains.com/objc/