CompTool is sometimes filed as a comp planning tool, but what it does is market pricing: survey management, job matching, aging and pay structure modeling. It is a smaller, practitioner-run alternative to Bettercomp, not a merit cycle tool like Pequity or Lattice Compensation.
Squirrel is the feature I would test first. Pay transparency laws have put salary ranges on millions of job postings, and Squirrel collects them, adding 80,000 to 100,000 postings a day and excluding estimated ranges. It is not a survey and CompTool says so, but as a check on whether your survey data has gone stale it is useful, and it uses only public data, which keeps it clear of the non-public data exchange concerns in the Department of Justice's antitrust guidance for HR.
I would recommend it to a comp team of one to five people that buys a few surveys, lives in Excel and wants faster matching without an enterprise contract. A team with a dozen survey subscriptions and WTW participation will find Bettercomp's WTW integration more relevant.