Research depth
Discovery
How well the tool supports keyword, competitor, SERP, backlink, or market research before execution.
Screpy
Covers keyword research, SERP analysis, organic keywords, competitor ads, backlinks, referring domains, and Search Console, but depth and quotas vary by plan.
Feature directory lists Keyword Research, SERP Analysis, Organic Keywords, Competitor Ads, Backlink Checker, Referring Domains, and Search Console: https://screpy.com/features/
Zutrix
Broad first-party research surface across keywords, competitors, backlinks and site exploration.
The keyword page provides search volume, CPC, competition, trends and project syncing: https://zutrix.com/keyword-research