SEOmator - SEO website analysis & audit tool
Senuto - Get more search data and increase your sales
SEO Minion - Chrome extension & Firefox add-on to help you with SEO
Ubersuggest - Want more traffic? Ubersuggest shows you how to win the game of SEO. Just type in a domain or a keyword to get started.
OnCrawl - OnCrawl is a SEO crawler and log analyzer that helps you improve your SEO performance. Increase traffic, rankings & revenues. Start your 14-day free trial.
SEORankMonitor - Boost Your Rankings, Track Your Competitors, and Monitor SEO Performance With The Most Comprehensive Rank Tracking In The Industry