What are some alternatives?
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
SpyFu - SpyFu helps companies determine where the company needs to go and how to get there. Improve experience with clients by watching trends and planning new strategies.
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Reputation VIP - Reputation VIP provides proprietary technology "Digital Fortress" to improve and protect online reputation on search engines.
Serpstat - Search analytics, Rank tracking, Backlink analysis and Site Audit tool.
WhiteSpark - Whitespark builds tools and provides services that help businesses and agencies with local search marketing.