Finding blog post angles, not just titles
Rather than only generating headlines, this tool suggests content angles - the underlying approach a post could take, like a beginner's guide, a myth-busting piece, or a cost breakdown - along with a one-line description of what that angle covers. It's meant to help you brainstorm directions for a topic you already know you want to cover, before you settle on an exact headline.
Why angles matter more than headlines at this stage of planning
A headline commits you to one specific framing before you've decided what the post is actually going to argue or cover - an angle (a myth-busting piece versus a cost breakdown versus a personal case study) shapes the entire structure and research needed, which is why settling on the angle first tends to produce a more coherent post than jumping straight to a catchy title.
Why each angle includes a one-line description of what it covers
A title alone ("5 mistakes people make with X") doesn't tell you what the post actually needs to contain - pairing each angle with a short description of its intended coverage (pitfalls and how to avoid them, for that example) gives you enough to start outlining immediately, rather than having to guess what the angle implies.
How this fits with the site's headline generator in a typical workflow
These two tools are meant to be used in sequence: pick a content angle here while you're still deciding what the post should actually be about, then feed a more specific phrase describing that chosen angle into the headline generator once you're ready to write several title options for it.