How do I transfer iOS apps only from an old computer to a new one?
When you choose to backup on iCloud you are creating a backup in the cloud, not the MacBook.

You have the choice to Sync to a computer or to iCloud. If you sync to a computer you can also sync over WiFi, which could be the better option for you by the sound of your question.

If you open iTunes, make sure that it is authorised to your account.

Plug your device in.

It will then say. (substitue iPod for iPhone, iPad etc)



Click "Transfer Purchases"

Your device will now transfer all the apps and data to this new computer before it syncs the new data.