Hello,
I don't know a way of finding every page in a list but there is a brilliant Chrome plug-in for finding out the Meta-Data and Tags for a specific page. It's called Meta SEO Inspector (currently in v.2.0.8 - the icon is a yellow lightbulb over a blue one).
What it does is list the Meta-Title, description, number of
and
tags on a page (as well as some other SEO pointers)
One method you could use, depending on the size of the site, is to go through the sitemap page by page, checking which pages have H1 tags and which ones don't. It's a bit labor intensive, and it could take a while depending on the site size, but it would certainly give you a definitive answer. Alternatively you could look at the source code of each page, but I imagine that would take forever.
Someone else may be able to refer a specific piece of software to you, but that's how I think I would do it. I hope this helps.
Cheers,
Luke