Ahrefs
ahrefs.com
Backlinks, keywords and competitor research
Pay-as-you-go SEO research with no subscription
Keyword, SERP, backlink, competitor, rank-tracking and site-audit research, plus keyword research for the App Store and Amazon and checks of how often AI answers mention and cite a brand. It works in the browser, through a REST API and through an MCP connection for Claude, Cursor and ChatGPT, and Google Search Console data does not reduce the balance. There is no subscription, monthly minimum or per-seat fee: an account adds credits, each action is charged from that balance with an estimate shown before it runs, and unused credits do not expire.
The best-known other tools in SEO & marketing. Full comparison.
ahrefs.com
Backlinks, keywords and competitor research
semrush.com
The broadest marketing toolkit
screamingfrog.co.uk
The technical SEO crawler
FlexQueries publishes no fixed monthly price, so it is not plotted. Here is what the rest of the category charges.
9 of these 10 prices were read from the vendor's own pricing page; the rest are marked * and are indicative. The median is taken across the 9 verified prices in SEO & Marketing. 4 more tools in this category have no monthly price and are not plotted.