I'm moving in
I've now spent well over 4 hours playing around, exporting and sorting data, and I've lined up so many content ideas I probably won't need to access TopicMojo again for months, not on my own behalf at least. (Tomorrow, I'll be focusing on content ideas for clients which I expect will eat up way more credits than I've used today, but 500 per month is still very generous.)
I'm not going to spend time rehashing what the app can do; that's been covered extensively enough, including by the founder. I will say, however, that I've officially given up the idea of jumping through various hoops to be able to eventually afford an ATP subscription long-term. Topic Mojo is offering a ton of questions grouped in extremely useful ways, plus data from sources I hadn't even considered (Tumblr, Medium, TikTok and even Etsy, to name 4).
In terms of working that data, you get to export everything your heart desires in csv format. I'm not a visual thinker, so I'm in no position to evaluate how good the tree diagrams are, but yes, they are there as well, should anyone need them.
To put the above in very simple terms: I'm so impressed I might get the SEO add-on subscription even if I end up realizing I don't really need it thanks to the other tools I'm using.