Where is the best place to develop applications on PC(windows), macOS, Android and IOS?

Question

Cross-platform

I didn’t come across this type of development before (I made toys on Unity), but I got an idea and I need the application to be synchronized and work on these devices through a shared account system. On all four platforms, I wanted to make a separate application (not a web one). Well, if you look realistically, then for starters, you would first make an application on Android and IOS and then later port them to PC (windows) and macOS. Maybe there are some development methods, because developing an application separately for all 4 platforms is such a thing.

Answer 1

Maybe you should look into react native or flutter . But even so, the amount of code that will need to be adapted will be decent.

Answer 2

https://www.cocos.com/en/cocos2dx - engine for toys with bindings for tablets and desktops.