Hello Dodiya,
prop firm robot an prop firm EA is naturally the same thing.
About your second question – not sure if i get it. First let’s start for which funded account you are talking about ? Also, expert advisors don’t come automatically once you purchase a challenge. You need to select with which EA from the many options we have, you want to trade on that funded account. Also, passing the challange/ evaluation is not guaranteed, you need to work with that – to monitor the performance of the expert advisors, eventually make some adjustments or even replace some which is not performing well with another one.
I hope i could be useful.
cheers!