How similar should the same app be across different platforms? [duplicate]
This question already has an answer here:
How similar should an application be across different platforms (iOS and Android) in case of a) visual design and b) interaction design (patterns on how to achieve a certain outcome).
I am not quite sure, since both platforms tackle certain interactions in different ways and also recommend specific design patterns. I am aware that the most basic things (like navigation bars/header) should be designed for each specific platform as users already know these things for their device, but when it comes to input fields for example I am a little lost.
Maintaining 2 different "design system" (1 for each app) is really slowing down my process when it comes to new features or general improvements.
Hope anyone here can help me out and give their opinion on this topic. (:
EDIT: I forgot to mention: Both iOS and Android are developed separately (Swift + Kotlin)