What are some alternatives?
When comparing Keyword Spy and SpyFu, you can also consider the following products
iSpionage - AdWords competitor keywords with the click of a button and monitor competitor PPC landing pages.
Optmyzr - Optmyzr AdWords Tools. Optimization Solutions, Quality Score Tracker, Landing Page Checker, and more. Free Trial Available.
RankHacker.com - The only keyword research tool that forecasts ROI & automates your content strategy.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
KWFinder - KWFinder is a keyword research and analysis tool bringing hundreds of long tail keywords with low SEO difficulty. Try KWFinder for free!
LiveIntent - LiveIntent is a web platform that offers effective e-mail advertising services for marketers and publishers.