Keyword Tool Comparison

Keyword Tools Keyword Discovery WordTracker SEO Book NicheBot NicheBot Classic Keywords Analyzer Google Adwords Tool Google Trends Overture Good Keywords
Searches 36 billion 411 million WordTracker Database 295 billion WordTracker
Database		 247 million (Webwords.com) N/A N/A N/A N/A
Unique Searches 881 million 84.6 million WordTracker
Database		 N/A WordTracker
Database		 N/A N/A N/A N/A N/A
Seasonal Trend Data yes no no yes no N/A yes yes no no
Database History Since June 2005 Past 130 days Past 130 days Since June 2005 Past 100 days N/A 1 month 1 month 1 month N/A
Database Sources 180+ 4* 4* (WordTracker) 180+ (WordTracker, Keyword Discovery, Google) 4* (WordTracker) N/A 1
(Google)		 1
(Google)		 1
(Overture)		 1
(Yahoo)
Regional or Language based Databases yes yes no yes no no yes yes yes no
Specialty Databases yes no no no no no no no no no
Search Engine Market Share yes no no no no no no no no no
Results per Query 1000 - 10000 1000 100 15,000 50 10000 150 5 N/A 10
Phrase Match searches yes yes no yes no yes yes yes no no
Related/Lateral searches yes yes yes yes yes yes yes yes yes no
Misspellings yes yes no yes yes yes yes no no yes
Keyword exclude search option yes yes no yes no yes yes no no no
Inflected form search yes no no no no no no no no no
Plural searches yes yes yes yes yes yes yes no no no
Thesaurus searches yes yes no yes yes yes yes no no no
Keyword Permutations yes no no no no yes no no no yes
Project Management yes yes no yes yes yes no no no yes
Import Keywords yes yes no yes no yes yes no no yes
Export Keywords yes yes yes yes yes yes yes yes no yes
Adult Filter no yes yes yes no no no no no no
Keyword Density Analysis yes no no yes no no no no no yes
Meta Tag Import yes no no yes no no no no no no
Cross Reference Tool yes no no no no no no no no no
Domain Research yes no no no no no no no no no
Keywords ranked by Category yes no no no no no no no no no
Keyword translations yes no no yes no no no no no no
KEI yes yes no yes no yes no no no no
Keyword Competitiveness Figures yes yes yes yes yes yes no no no no
Cost $69.95 USD/month $59 USD/month Free From $14 USD/month Free $97 USD Free Free Free Free


  • Word Tracker offer two separate tools, only one has access to their UK database.
  • Free tools such as Nichebot Classic and SEO Book tool access Word Tracker's US database only.
  • Word Tracker US data is obtained from MetaCrawlers such as dogpile.com and metacrawler.com
  • Word Tracker UK data is obtained from ISP logs.
  • Search engine market share: Services that apply a general search engine percentage are not counted, such as WordTracker and SEO Book.