Viable Fit - Measure and improve your product market fit
Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
Product Fit - Measure product/market fit in app with your users.
StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.
Product/Market Fit Survey - Check how close your product is to Product/Market fit
Histats - Start tracking your visitors in 1 minute!