Iran has said that it's working on nuclear energy, not a bomb. Their pope-level religious leader said it was haram to have nuclear weapons. I know you can't necessarily trust Iran's word, but can you trust Israel's?
I've never received any answer to the question "what legitimate non-military use is there for a 60%-plus enriched uranium?"
The nuclear reactors can provide free electricity out of 2-5% enriched uranium, the naval propulsion (like for ... nuclear icebreakers for the Straits of Hormuz, I dunno?) needs 8-10% enriched.
It doesn't matter what they say, or what their leaders say -- there is only one use for 60%+ enriched uranium known to the science, and it's military (the atomic bomb).
There is ZERO serious questioning that Iran was working on developing nuclear weapons. It is abundantly clear that they were. How actively and to what extent in recent years is a matter of some debate but in general they absolutely have had a serious weapons program.