Why can my Windows 10 minecraft connect to my iPad world, but not the other way around?
Solution 1:
It doesn't have anything to with the version, it only doesn't work if one version is 1.13 and one is 1.14 or something like that. The reason why you can't update it on your computer is that 1.13.3 is ios only (https://feedback.minecraft.net/hc/en-us/articles/360036461291-Minecraft-1-13-3-iOS-Only-). How does it not work? Does it not display the world or does it display an error when you try to join the world? Try to connenct using both methodes: xbox live and w-land. It might be a bug or have to do with the firewall.