From June 28th, 2016 to October 12th, 2019, 80% user give 5-star rating, 40% user give 3-star rating, 40% user give 2-star rating, 40% user give 1-star rating. for Spark SEO by seoClarity chrome extension.
No other SEO plug-in has as much page-level data. The fact that they offer it for free ... amazing. It only triggers when you click the icon so it's not continually slowing down your browser with every page load. The data appears in a tidy its left-hand dock: top-ranking keywords with Google Keyword Planner search volume, meta data, backlink data from Majestic, word count and relevance scores. It's made by seoClarity, one of the top SEO platforms out there, and a super bunch of folks. I happen to also be a paying customer of their platform (which is NOT required to use Spark's full feature list), and I can't say enough great things about their integrity and their development processes. This is NOT another bait and switch plug-in that you sign up for and then can't use until you upgrade. It's truly free, and offers truly great data you can't get in other plug-ins. Sincerely, Jill K. Brown, 13 years in SEO.
Cant log in and can't use it - buggy.
The previous version included keyword rank/search volume data. This was the primary reason I used the app. Now that it's gone, I find I use this program a lot less. It would be great if that feature came back.
This plugin is particularly useful to pull some quick stats and insights of competitor sites.
Gives you a lot of stats about the page, and is easy to understand. But there isn't anything particularly impressive here. Biggest downside is that it's spamware for Walmart. It loads walmart.com everytime I launch my browser. It would get a 3 or 4 star if not for the browser-hijacking.