Clicky vs Piwik
Clicky Web Analytics enables bloggers and small websites to get insights and live information about their online visitors. Clicky lets you see every visitor and every action they take on your web site, with the option to attach custom data to visitors, such as usernames or email addresses. Analyze each visitor individually and see their full history.
Piwik is the leading open source web analytics platform that gives you valuable insights into your website’s visitors, your marketing campaigns and much more, so you can optimize your strategy and online experience of your visitors.