Syncing email and calendar with iphone5

I am trying to set up to sync with on my iPhone5 but when I follow the instructions it won’t accept my Apple login details. I need to be sure this is going to work.

At present I am using free version as a trial but would be happy to use the paid version if this is easy to sync with iphone.

what instructions are you following?
If you need to setup an @icloud or @me account in eM Client you should be able to use the automatic setup and everything should setup automatically.

Thank you,