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    * https://www.hotjar.com/ - Per site: 2000 page views/day, 3 heatmaps, data stored for 3 months...
    * http://imprace.com/ - Landing page analysis with suggestions to improve bounce rates. Free for 5 landing pages per domain.
    * https://baremetrics.com/ - Analytics & Insights for stripe
+   * https://www.optimizely.com - A/B Testing solution. - Free starter plan - 1 website, 1 iOS and 1 android app.
 
 ## International Mobile number verification API and SDK
  * https://www.cognalys.com/ - Freemium mobile number verification through an innovative and reliable method than using SMS gateway. Free accounts will have 70 Tries and 50 verifications per day. {[Signup](https://www.cognalys.com/signup/1)}