I'm nuts for Squirrrly!
I tested this out before it launched on AppSumo and being more of a SEO novice, but understanding the basics, I realized just how much I didn't know through Squirrrly.
The UI is a bit...simple (dare I say dated - but then again, it's a WordPress plugin, so you have to manage your expectations) but the UX is amazing.
For anyone just starting out in SEO, you'll know it's a behemoth and it's daunting, but Squirrrly not only automates some really key components on the first install, it walks you through the entire SEO process AND it educates you as well. It's almost actively working against itself by teaching you the tools you need to be successful in SEO and go elsewhere and drop products like Yoast and Squirrrly entirely. This isn't just a shifty, shady SEO tool that you see popping up all over these days with really shallow tools that don't actually improve or impact your site's ranking, merely provide insights and metrics - Squirrrly makes insights and recommended improvements ACTIONABLE - because that's the only way you're site will improve in rankings!
There are so many tools and facets of Squirrrly that it's almost hard to explain it all in one post here. One thing I did really enjoy as well, when crafting a new post, you get a similar view/tool set as you would see in something like Frase or MarketMuse, where you get a green or red dot depending if certain ranking-positive items have been satisfied or not. There's also a plethora of automation that you can enable (and customize if you so desire) so that every future page, post, etc. is properly optimized for SEO, and in case you missed the first part, it's...automatic! It's not just checking after the fact and giving you a nudge or reminder that you didn't do A - Z in that last post of yours, no, it's doing it for you, without you ever touching a thing.
The limits are fairly generous (would like to see maybe a bit more focus pages on the 3rd stack, simply because "Unlimited sites" then begins to feel very limited) and the deal is very affordable.
Definitely if you're a novice or haven't even touched SEO for your site, you should pick this up - it will solve all of your prayers, as it's not just another SEO tool that you saw an affiliate push one time.
And even if you're a seasoned vet, this could replace your current flavor of choice and I'm fairly positive there's nothing you would miss from your old tool, and much more you would gain from this new one.
Giving Squirrrly 5/5. Once again, maybe I'm just a dumb noob in SEO, but you should seriously try this out and consider it, because this dumb SEO noob sees actual growth potential with Squirrrly when I didn't in things like Yoast.