Please help, really daft questions about getting a new smartphone

[ssd]

This phone I'm using is my first smartphone. The contract is up and I want a new phone.
My question is, I know that I need a pack number to transfer the phone number, but how do I transfer all the apps? I have all my passwords saved on the phone so I don't remember any of them. I can't work out what to do when I get my new phone and all the apps I use are on my old phone.
Thanks (and try not to laugh at me )

The PAC number you will get by phoning up your phone provider. If you are just changing phone, but not phone provider you can just transfer the SIM into the new phone.

Normally with phones, you will have logged in to it with an email address when setting it up in the first place. The apps are saved to the email address, but data for them may not be. You will probably need to redownload them on the new phone, but not repay for paid for apps.

If you are getting a Samsung phone, you won't need to re-download anything. It comes with a Smart Switch app which enables you to access the account you downloaded everything via previously and then it just moves them across. Very easy.

No idea what you do if it's an Apple phone, presumably you can access everything via the icloud and transfer it all over in one go in a similar way.

My contract is up so I'm changing phone I think from android to iPhone. So I don't know if I can just move the sim card over?
I don't have any paid for apps.

I'm fairly sure there are apps you can get to switch your passwords across. If you get your new iPhone it may well come with instructions on how to transfer your Android data (including photos and app passwords) using an app. I did it the other way round, went from iPhone to Samsung and they had an app and instructions on how to do it

That's interesting.
I'm not sure what to do phone wise. I have a cheaper Huawei and I've had issues using it for my work intranet. Google on my phone blocks the work Google account. It's confusing me why.
I might just stick with android, I don't know the difference.

I'd stick with Android. It doesn't have to be Huawei, Samsung and Motorola are also good.

I'm not sure that you can just send stuff over to iPhones as they tend not to have an SD card slot and use a different app store.